Methods for treating hair

ABSTRACT

The present disclosure relates to methods for treating hair, which are particularly useful for repairing, strengthening, and protecting hair from damage. The methods include applying to the hair each of the following components, together, separately, or in any combination thereof, in one or more hair-treatment compositions:
         (a) at least one amino acid or amino sulfonic acid, and/or a salt thereof, which is present in at least one of the one or more hair-treatment compositions in an amount of at least 0.5 wt. %;   (b) at least one non-polymeric mono, di, or tricarboxylic acid, and/or a salt thereof, which is present in at least one of the one or more hair-treatment compositions in an amount of at least 0.5 wt. %; and   (c) at least one non-taurate surfactant, which is present in at least one of the one or more hair-treatment compositions.       

     Hair treated with the methods exhibit desirable cosmetic properties such as smoothness, gloss, improved combability, and improved strength and elasticity.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims benefit of U.S. Provisional Application No.62/479,879, filed Mar. 31, 2017, which are incorporated herein byreference in their entireties.

FIELD OF THE DISCLOSURE

The instant disclosure relates to methods for treating hair including,for example, methods for repairing, strengthening, and protecting hairfrom damage. The methods involve applying to the hair one or morehair-treatment compositions that include components that restructure thehair fibers and result in the hair exhibiting improved properties suchas smoothness, gloss, combability, strength, and elasticity.

BACKGROUND

Individuals desire healthy and strong hair, a healthy looking hair is ingeneral a sign of good health and good hair-care practices. Nonetheless,nutrition, environmental influences, and chemical hair treatments canlead to hair damage that significantly weakens and dulls the hair overtime. Gloss and moisture balance are deleteriously affected making thehair more difficult to comb and style. Furthermore, dry hair that hasbeen weakened or damages is also prone to breakage and the formation of“split ends.”

Nutrition plays a crucial role in the health of hair, but nutritionalone is not sufficient to compensate for the various types of physical,chemical, and environmental damage that prevent optimal hair quality.Physical hair damage is often the result of repeatedly manipulating theshape of the hair. For example, hair styles such as ponytails, buns, andbraiding are quick and easy but when done too often and too tightly, canimpart strain on the edges of the hair and cause a receding hair line.Hair also becomes physically damaged during detangling and styling.Excessive detangling can result in split ends and breakage.

Many chemical treatments are available for changing the appearance ofhair. For example, hair may be lightened or bleached and oxidative dyescan be used to change the color of the hair. Chemical treatments forpermanently straightening or curling the hair are also common. Chemicaltreatments are popular because their effects are long-lasting and can bedrastic. Nonetheless, the biggest drawback to chemical treatments is thestrain and damage they cause to the hair. This is because chemicaltreatments permanently change the chemical and physical structure of thehair. Another cause of chemical hair damage is heat. Repeated use ofheating appliances such as flat irons and blow-dryers remove moisturefrom the surface of the hair cuticles, resulting in brittle, dry hairthat become more vulnerable to breakage.

The environment also influences the health of hair. Regions with hardwater can affect the look, feel and shine of the hair. This is becausehard water leaves mineral deposits, which accumulate over time on thehair and eventually prevents moisture intake into the hair. The hairbecomes dry, frizzy, and is prone to tangles. Environmental factors,such as strong sun, wind, cold air, extreme temperature variations andchanges in air humidity can also damage the hair. The static and drywinter air contributes to moisture loss. Abrupt change from cold outdoorair to warm indoor air can cause the cuticle layers of the hair to losemoisture quickly into the atmosphere. Environmental effects on the hair,however, cannot be completely avoided. Thus, mechanisms to reduce orprevent damage to hair, and products that can protect and strengthenhair are useful for combating hair damage.

BRIEF DESCRIPTION OF THE DRAWINGS

Implementation of the present technology will now be described, by wayof example only, with reference to the attached figures, wherein:

FIG. 1 shows the fiber characteristic life time for natural hair,bleached hair, and hair treated according to the instant disclosure,based on fiber durability testing; and

FIG. 2 is a plot of survival probability over cycles to break fornatural hair, bleached hair, and hair treated according to the instantdisclosure, based on fiber durability testing.

It should be understood that the various aspects are not limited to thearrangements and instrumentality shown in the drawings.

SUMMARY OF THE DISCLOSURE

The instant disclosure relates to methods for treating hair, inparticular methods for strengthening hair and methods for minimizingand/or compensating for damage to hair such as damage caused byenvironmental stress and cosmetic treatments (e.g., repeated washing,drying, heating, chemical processing, etc.). The methods involvetreating hair with an effective amount of one or more amino acids and/oramino sulfonic acids, and/or a salt thereof, and an effective amount ofone or more non-polymeric, mono, di, and/or tricarboxylic acids, and/ora salt thereof. Hair treated by the methods exhibit desirable cosmeticproperties such as improved smoothness, gloss, combability, strength,and elasticity. In particular, the methods include applying to the haireach of the following components, together, separately, or in anycombination thereof, in one or more hair-treatment compositions:

-   -   (a) at least one amino acid or amino sulfonic acid, and/or a        salt thereof, which is present in at least one of the one or        more hair-treatment compositions in an amount of at least 0.5        wt. %;    -   (b) at least one non-polymeric mono, di, or tricarboxylic acid,        and/or a salt thereof, which is present in at least one of the        one or more hair-treatment compositions in an amount of at least        0.5 wt. %; and    -   (c) at least one non-taurate surfactant, which is present in at        least one of the one or more hair-treatment compositions.

The components are typically applied to the hair in one or morecompositions (hair-treatment compositions), such as shampoos,conditioners, hair gels, hair sprays, hair rinses, hair lotions, etc.The components may be applied together in a single hair-treatmentcomposition or may be applied separately in a sequence. Furthermore, themethods may employ a single treatment or may employ multiple treatmentsover a period of time.

The hair-treatment compositions used in the methods may includeadditional components, which can vary depending on the type ofhair-treatment composition in which the component are incorporated.Non-limiting examples of additional components include surfactants(anionic, cationic, nonionic, amphoteric (zwitterionic), and a mixturethereof); fatty compounds; silicones; polymers including cationicpolymers; thickening agents; preservatives; water-soluble solvents, etc.

The methods described herein repair, condition, and protect hair fromdamage, reduce/minimize damage to hair, and/or improve the condition andquality of the hair, for example, with respect to visual/aestheticappearance (e.g., healthy look, shine, reduced split ends), feel of thehair (e.g., smooth feel, soft feel, conditioned feel), and manageabilityof the hair (e.g., no or less frizz, improved styleability/shapeability,ease of combing, detangling, desirable volume). Accordingly, thehair-treatment compositions are useful in a variety of methods. Suchmethods include single treatments and multiple treatments, e.g.,repeatedly treating the hair with the composition(s) for one week, twoweeks, one month, or longer.

DETAILED DESCRIPTION OF THE DISCLOSURE

The instant disclosure relates to methods for treating hair including,for example, repairing, strengthening, and protecting hair from damage.The term “treating hair” in the context of the instant disclosureencompasses many types of hair treatments and includes treatments forrestructuring hair. The term “restructuring hair” relates to repairinghair, strengthening hair, and/or compensating for damage to hair, forexample, damage due to environmental stress, cosmetic treatments (e.g.,repeated washing, crying, heating, etc.), and chemical processing. Thus,restructuring hair involves strengthening and/or repairing hair.Restructured hair fibers exhibit desirable cosmetic properties such as,for example, improved smoothness, gloss, combability, strength, andelasticity.

In one aspect, the methods include applying to the hair each of thefollowing components, together, separately, or in any combinationthereof, in one or more hair-treatment compositions:

-   -   (a) at least one amino acid or amino sulfonic acid, and/or a        salt thereof, which is present in at least one of the one or        more hair-treatment compositions in an amount of at least 0.5        wt. %;    -   (b) at least one non-polymeric mono, di, or tricarboxylic acid,        and/or a salt thereof, which is present in at least one of the        one or more hair-treatment compositions in an amount of at least        0.5 wt. %; and    -   (c) at least one non-taurate surfactant, which is present in at        least one of the one or more hair-treatment compositions.

As noted, the components used in the methods are applied to the hair inone or more “hair-treatment compositions.” A “hair-treatmentcomposition” is a composition that is applied to the hair to achieve aparticular cosmetic effect. Non-limiting examples of hair-treatmentcompositions include shampoos, conditioners, hair gels, hair sprays,hair rinses, hair lotions, rinse-out hair masques, etc. Hair-treatmentcompositions are often rinsed from the hair after a period of time,e.g., after the hair-treatment composition has had sufficient time toimpart the desired cosmetic effect to the hair. The components forapplication to the hair may be applied simultaneously in a singlehair-treatment composition or can be applied separately in a sequence(as part of a “bundle treatment” or “sequential treatment”).

Bundle treatments and sequential treatments are treatments that involvethe use or the application of multiple (more than one) hair-treatmentcompositions. The multiple hair-treatment compositions of a bundletreatment may be combined and applied to the hair together or may besequentially applied to the hair, thereby resulting in a “sequentialtreatment.” Thus, a sequential treatment is a type of bundle treatmentbut involves the sequential application of multiple hair-treatmentcompositions to the hair.

An example of a typical sequential treatment is the shampooing andconditioning of hair. The treatment involves the use of two individualhair-treatment compositions (a bundle), a shampoo and a conditioner,that are sequentially applied to the hair in a routine. In a standardshampooing and conditioning treatment, the hair is cleansed with ashampoo, which is rinsed from the hair, after which a conditioner isapplied to the hair to condition the hair. The conditioner is alsotypically rinsed from the hair after a period of time. Bundle treatmentsand sequential treatments are typically performed on hair prior tostyling the hair.

The hair-treatment compositions can be in a variety of forms. Forexample, they may be a liquid, a gel, a lotion, a spray, etc. Thehair-treatment compositions are typically not in the form of a solid ora paste. Therefore the compositions have a melting temperature of lessthan 40° C., less than 35° C., less than 30° C., less than 25° C., lessthan 20° C., less than 15° C., or less than 10° C. As mentionedpreviously, the hair-treatment compositions may be formulated, forexample, into products such as shampoos including sulfate-free andconditioning shampoos, conditioners, rinse-out masques, lotions, rinses,emulsions, and general hair strengthening products.

Multiple hair-treatment compositions that may be employed in the methodsof the instant disclosure may be provided as a bundle or amulti-component kit for treating the hair. The bundle or kit mayinclude, for example, a first component such as a shampoo or a cleansingor detergent-based composition; second component such as a conditioneror a conditioning composition; and an optional third component such as agel, lotion, rinse, or spray. The kits or bundles according to theinstant disclosure may include a shampoo, a conditioner, a rinse-outmasque, a lotion, a gel, a rinse, a cream, or any combination thereof.The kits or bundles may include two, three, or more individualhair-treatment compositions.

The multiple hair-treatment compositions of the bundles or kits areseparately contained, for example, in separate packaging or in separatecontainers. Non-limiting examples of containers include bottlesincluding pump bottles, tubes, jars, squeeze tubes, and squeeze packets.The hair-treatment compositions may also impregnate applicators andarticles, hair caps, gloves, or wipes. The hair-treatment compositionsmay be applied by hand, with an applicator nozzle, with a containerequipped with a pump and a dispensing comb, or with an insolublesubstrate or article impregnated with the composition.

The methods of the instant disclosure include single treatments andmultiple treatments, e.g., repeatedly treating the hair with thecomposition(s) for a period of time. For example, the treatments of themethods may be repeated daily, every-other-day, three or four times perweek, once or twice per week, one, two, or three times per month, etc.The repeated treatments may be carried out for a period of time, forexample, for one week, two weeks, one month, three months, six months,or longer. As some of the hair-treatment compositions in the methods maybe shampoos and/or conditioners, the methods may be carried outaccording to an individual's normal shampooing (and optionalconditioning) routine.

An effective amount of a hair-treatment composition (including, forexample, shampoos and/or conditioners) is applied to the hair, forexample, hair that has been wetted with water. The hair-treatmentcompositions may also be applied to dry hair. Furthermore, thehair-treatment compositions may be applied to hair that has beenartificially dyed, pigmented, or chemically permed or straightened, orhair that has not been artificially dyed, pigmented, or chemicallypermed or straightened.

After application, the hair treatment compositions may be allowed toremain on the hair for a period of time (a leave-on time). The leave-ontime may be brief, e.g., a few seconds, or it may be longer, e.g., up to1, 2, 3, 4, 5, 10, 15, 20, or 30 minutes. For example, thehair-treatment compositions may be allowed to remain on the hair forabout 30 seconds, 1, 2, 3, 4, or 5 minutes to about 20 minutes.Furthermore, the hair-treatment compositions may be allowed to remain onthe hair for about 5 seconds to about 15 minutes, about 5 seconds toabout 10 minutes, about 5 seconds to about 5 minutes, or about 5 secondsto about 1 minute. After the leave-on time has expired, thehair-treatment composition may be rinsed from the hair, usually withwater.

Nonetheless, a hair-treatment composition may be allowed to remain onthe hair while a subsequent hair treatment composition is applied to thehair. In other words, one or more hair-treatment compositions may belayered (or mixed) on the hair and together allowed to remain on thehair for a period of time. For example, the multiple hair-treatmentcompositions may be allowed to remain on the hair for about 1 second toabout 20 minutes, about 5 seconds to about 15 minutes, about 5 secondsto about 10 minutes, about 5 seconds to about 5 minutes, or about 5seconds to about 1 minute. After the leave-on time has expired, themultiple hair-treatment compositions may be rinsed from the hair,typically with water. In some cases, however, it may be desirable toallow a final hair-treatment composition to remain on the hair withoutrinsing, and subsequently styling the hair. For example, aftershampooing and/or conditioning, a gel, lotion, rinse, or cream may beapplied to the hair and allowed to remain on the hair during styling.

The methods of treating hair according to the instant disclosure includecleansing hair with a shampoo, the shampoo comprising:

-   -   at least 0.5 wt. % of at least one amino acid or amino sulfonic        acid, and/or a salt there;    -   optionally, at least one non-polymeric mono, di, or        tricarboxylic acid, and/or a salt thereof;    -   one or more surfactants, preferably one or more non-taurate        surfactants; and    -   water.

The at least one non-polymeric mono, di, or tricarboxylic acid, and/or asalt thereof is an optional component of the above shampoo. Therefore,if the at least one non-polymeric mono, di, or tricarboxylic acid,and/or a salt thereof, is not included in the shampoo, then the methodfurther includes applying an additional hair-treatment composition tothe hair, the additional hair-treatment composition including at least0.5 wt. % at least one non-polymeric mono, di, or tricarboxylic acids,and/or a salt thereof. The additional hair-treatment composition may be,for example, a conditioner, a gel, a spray, a rinse, a lotion, arinse-out masque, etc., i.e., another hair-treatment composition for usein a bundle treatment or a sequential treatment. Additional componentsthat can be useful in the shampoos are discussed in more detail later.

In another aspect, methods of treating hair according to the instantdisclosure include conditioning the hair with a conditioner, theconditioner comprising:

-   -   at least 0.5 wt. % of at least one amino acid or amino sulfonic        acid, and/or a salt thereof;    -   optionally, at least one non-polymeric mono, di, and/or        tricarboxylic acid, and/or a salt thereof;    -   one or more surfactants, preferably at least one or more        cationic surfactants; and    -   water.

The at least one non-polymeric mono, di, or tricarboxylic acid, and/or asalt thereof, is an optional component. Therefore, if the at least onenon-polymeric mono, di, or tricarboxylic acid, and/or a salt thereof, isnot included in the conditioner, the method further includes applying anadditional hair-treatment composition, the additional hair-treatmentcomposition comprising at least 0.5 wt. % of at least one non-polymericmono, di, or tricarboxylic acid, and/or a salt thereof. The additionalhair-treatment composition may be, for example, a shampoo, a gel, aspray, a rinse, a rinse-out masque, etc., i.e., another hair-treatmentcomposition for use in a bundle treatment or a sequential treatment.Additional components that can be useful in the conditioners arediscussed in more detail later.

In one aspect, methods for treating hair according to the instantdisclosure include applying to the hair a hair-treatment compositioncomprising:

-   -   at least 0.5 wt. % at least one non-polymeric mono, di, or        tricarboxylic acid, and/or a salt thereof;    -   water;    -   optionally, one or more thickening agents; and    -   optionally, one or more surfactants.

The above hair-treatment composition may be a shampoo or a conditioner,but may also be a hair gel, a hair spray, a hair rinse, a hair lotion, arinse-out masque, etc. In some cases, the above hair-treatmentcomposition is a hair-treatment composition other than a shampoo orconditioner that is used as part of a bundle treatment or sequentialtreatment with a shampoo and/or conditioner. The hair-treatmentcomposition may optionally include one or more amino acids and/or aminosulfonic acids, and/or a salt thereof, but the one or more amino acidsand/or amino sulfonic acids, and/or a salt thereof, may be in anotherhair-treatment composition, such as, for example, a shampoo and/or aconditioner that is applied to the hair in a bundle treatment orsequential treatment. Additional components that can be useful in thehair-treatment composition are discussed in more detail later.

In one aspect, the methods for treating hair according to the instantdisclosure include:

-   -   (A) cleansing the hair with a shampoo comprising:        -   (i) at least 0.5 wt. % of at least one amino acid or amino            sulfonic acid, and/or a salt thereof;        -   (ii) optionally, at least 0.5 wt. % of at least one            non-polymeric mono, di, or tricarboxylic acid, and/or a salt            thereof;        -   (iii) one or more surfactants, preferably one or more            non-taurate surfactants; and        -   (iv) water; and    -   (B) applying to the hair a hair-treatment composition        comprising:        -   (i) at least 0.5 wt. % of at least one non-polymeric mono,            di, or tricarboxylic acid, and/or a salt thereof;        -   (ii) optionally, one or more thickening agents;        -   (iii) optionally, one or more surfactants; and        -   (iv) water.

Cleansing the hair with the shampoo of (A) may be carried out beforeapplying the hair-treatment composition of (B), or may be carried outafter applying the hair-treatment composition of (B). Also, thehair-treatment composition of (B) may be mixed with the shampoo of (A)prior to cleansing the hair or may be applied to the hair during thecleansing process, for example, it may be applied to the hair at thesame time as the shampoo, or applied such that both the hair-treatmentcomposition of (B) and the shampoo of (A) are on the hair at the sametime.

In another aspect, methods for treating hair according to the instantdisclosure include:

-   -   (A) conditioning the hair with a conditioner comprising:        -   (i) at least 0.5 wt. % of at least one amino acid or amino            sulfonic acid, and/or a salt thereof;        -   (ii) optionally, at least 0.5 wt. % of at least one            non-polymeric mono, di, or tricarboxylic acid, and/or a salt            thereof;        -   (iii) one or more surfactants; and        -   (iv) water; and    -   (B) applying to the hair a hair-treatment composition        comprising:        -   (i) at least 0.5 wt. % of at least one non-polymeric mono,            di, or tricarboxylic acid, and/or a salt thereof; and        -   (ii) optionally, one or more thickening agents;        -   (iii) optionally, one or more surfactants; and        -   (iv) water.

Conditioning the hair with the conditioner of (A) may be carried outbefore applying the hair-treatment composition of (B), or may be carriedout after applying the hair-treatment composition of (B). Also, thehair-treatment composition of (B) may be mixed with the conditioner of(A) prior to conditioning the hair or may be applied to the hair duringthe conditioning process, for example, it may be applied to the hair atthe same time as the conditioner, or applied such that both thehair-treatment composition of (B) and the conditioner of (A) are on thehair at the same time.

In another aspect, methods of the instant disclosure include:

-   -   (A) cleansing the hair with one or more shampoos comprising:        -   (i) at least 0.5 wt. % of at least one amino acid and/or            amino sulfonic acid, and/or a salt thereof;        -   (ii) optionally, at least 0.5 wt. % of at least one            non-polymeric mono, di, or tricarboxylic acid, and/or a salt            thereof;        -   (iii) one or more surfactants; and        -   (iv) water; and    -   (B) conditioning the hair with one or more conditioners        comprising:        -   (i) at least 0.5 wt. % of at least one amino acid or an            amino sulfonic acid, and/or a salt thereof;        -   (ii) optionally, at least 0.5 wt. % of at least one            non-polymeric mono, di, or tricarboxylic acid, and/or a salt            thereof;        -   (iii) one or more surfactants; and        -   (iv) water; and    -   (C) applying one or more hair-treatment compositions to the hair        comprising:        -   (i) at least 0.5 wt. % of at least one non-polymeric mono,            di, or tricarboxylic acid, and/or a salt thereof;        -   (ii) optionally, one or more thickening agents;        -   (iii) optionally, one or more surfactants; and        -   (iv) water.

A hair-treatment composition of (C) may be applied to the hair beforecleansing the hair with a shampoo of (A), after cleansing the hair witha shampoo of (A) but before conditioning the hair with a conditioner of(B), and/or after conditioning the hair with a conditioner of (B). Also,a hair-treatment composition of (C) may be mixed with a shampoo of (A)prior to cleansing the hair, mixed with a conditioner of (B) prior toconditioning the hair, applied to the hair during the cleansing of (A),and/or is applied to the hair during the conditioning of (B). Ahair-treatment composition of (C), when applied after cleansing andconditioning, may be allowed to remain on the hair during styling, ormay be rinsed from the hair before styling.

In some cases, the methods may include: first, cleansing the hair with ashampoo of (A); second, applying to the hair a hair-treatmentcomposition of (C); third, conditioning the hair with a firstconditioner of (B); and fourth, conditioning the hair with a secondconditioner of (B); wherein the hair-treatment composition of (C) is notrinsed from the hair prior to conditioning the hair with the firstconditioner of (B).

Amino acids are simple organic compounds containing both a carboxylicadd group (—COOH) and an amino group (—NH₂). Amino sulfonic acids aresimple organic compounds containing both a sulfonic acid group (—SO₂OH)and an amino group (—NH₂). Accordingly, the one or more amino acidsand/or amino sulfonic acids may be selected from compounds of Formula(I) and compounds of Formula (II):

wherein R represents a hydrogen atom, a linear or branched, preferablylinear, C₁-C₅ alkyl group, said alkyl grou being optionally substitutedwith at least one group chosen from hydroxyl, —C(O)—OH, —S(O)₂—OH,—C(O)—O⁻ and M⁺, and S(O)₂—O⁻ and M⁺, with M⁺ representing a cationiccounterion such as an alkali metal, alkaline earth metal, or ammonium,and n is 0 or 1. In the hair-treatment compositions containing them, theamino acids and/or amino sulfonic acids may be in their non-ionized form(I) and (II) or in their ionized or betaine form (I′) and (II′):

wherein “R” and “n” are as defined above. The one or more amino acidsand/or amino sulfonic acids may also be in their conjugate base form(Ib) and (IIb).

wherein “R” and “n” are as defined above.

Well-known amino adds include the twenty amino acids that form theproteins of living organisms (standard proteinogenic amino acids):alanine, arginine, asparagine, aspartic add, cysteine, glutamic acid,glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine,phenylalanine, praline, serine, threonine, tryptophan, tyrosine, andvaline. The amino acids of the instant disclosure, however, are notlimited to the standard proteinogenic amino acids.

Non-limiting examples of amino sulfonic acids include aminomethanesulfonic acid, aminoethane sulfonic acid (taurine), aminopropanesulfonic acid, aminobutane sulfonic acid, aminohexane sulfonic acid,aminoisopropyl sulfonic acid, aminododecyl sulfonic acid, aminobenzenesulfonic acid, aminotoulene sulfonic acid, sulfanilic acid,chlorosulfanilic acid, diamino benzene sulfonic acid, amino phenolsulfonic acid, amino propyl benzene sulfonic acid, amino hexyl benzenesulfonic acid, and a combination thereof.

In some cases, charged amino acids may be used. Non-limiting examples ofcharged amino acids include arginine, lysine, aspartic acid, andglutamic acid. In some cases, polar amino acids are useful. Non-limitingexamples of polar amino acids include glutamine, asparagine, histidine,serine, threonine, tyrosine, cysteine, methionine, and tryptophan.

In some cases, hydrophobic amino acids may be employed. Non-limitingexamples of hydrophobic amino acids include alanine, isoleucine,leucine, phenylalanine, valine, proline, and glycine.

In some instances, the hair-treatment compositions include one or moreamino acids, and/or a salt thereof, and/or one or more amino sulfonicacids, and/or a salt thereof, selected from the group consisting ofglycine, alanine, serine, beta-alanine, taurine, sodium glycinate,sodium alaninate, sodium serinate, lithium beta-alanine, sodium taurate,a salt thereof, and a mixture thereof.

In some cases, the hair-treatment compositions include only one or moreamino acids, and/or a salt thereof, only one or more sulfonic acids,and/or a salt thereof, or a mixture of both amino acids and sulfonicacids, and/or a salt thereof, for example, one or more amino acidsand/or amino sulfonic acids, and/or a salt thereof, that are selectedfrom the group consisting of aspartic acid, cysteine, glycine, lysine,methionine, proline, tyrosine, phenylalanine, carnitine, taurine,betaine, a salt thereof, and a mixture thereof.

In some instances, the hair-treatment compositions include taurine(2-aminoethane sulfonic acid), and/or a salt thereof.

The total amount of the at least one amino acid or amino sulfonic acid,and/or a salt thereof, is at least 0.5 wt. %, based on the total weightof the hair-treatment composition. For example, the total amount of theat least one amino acid or amino sulfonic acid, and/or salt thereof, maybe at least 0.5 wt. % to about 50 wt. %, at least 0.5 wt. % to about 40wt. %, at least 0.5 wt. % to about 30 wt. %, at least 0.5 wt. % to about20 wt. %, at least 0.5 wt. % to about 10 wt. %, at least 0.5 wt. % toabout 5 wt. %, about 1 wt. % to about 50 wt. %, about wt. % to about 40wt. %, about 1 wt. % to about 30 wt. %, about 1 wt. % to about 20 wt. %,about 1 wt. % to about 10 wt. %, or about 1 wt. % to about 5 wt. %. Insome cases, the total amount of the at least one amino acid or aminosulfonic acid, and/or salt thereof, is about 2 to about 10 wt. %, about2 to about 8 wt. %, about 2 to 6 wt. %, or about 2 to 5 wt. %.

In some instances at least one non-polymeric mono, di, or tricarboxylicacid, and/or a salt thereof, is included in the same hair-treatmentcomposition as the at least one amino acid or amino sulfonic acid,and/or a salt thereof, but in other instances, the at least one mono,di, or tricarboxylic acid, and/or a salt thereof, may be in a separatehair-treatment composition. A non-polymeric mono, di, or tricarboxylicacid is an organic compound having one (mono), two (di), or three (tri)carboxylic acid groups (—COOH). The compounds typically have a molecularweight of less than about 500 g/mol, less than about 400 g/mol, or lessthan about 300 g·mol.

Non-limiting examples of non-polymeric, mono, di, and/or tricarboxylicacids, and/or a salt thereof, include formic acid, acetic acid,propionic acid, butyric acid, valeric acid, caproic acid, entanthicacid, caprylic acid, pelargonic acid, capric acid, undecylic acid,lauric acid, tridecylic acid, lauric acid, tridecylic acid, myristicacid, pentadecylic acid, palmitic acid, margaric acid, stearic acid,nonadecylic acid, arachidic acid, lactic acid, oxalic acid, malonicacid, malic acid, glutaric acid, citraconic acid, succinic acid, adipicacid, tartaric acid, fumaric acid, maleic acid, sebacic acid, azelaicacid, dodecanedioic acid, phthalic acid, isophthalic acid, terephthalicacid, 2,6-naphthalene dicarboxylic acid, citric acid, isocitric acid,aconitric acid, propane-1,2,3-tricarboxylic acid,benzene-1,3,5-tricarboxylic acid, a salt thereof, and a mixture thereof.

The hair-treatment compositions may include one or more mono-carboxylicacids, and/or a salt thereof. Non-limiting examples of mono-carboxylicacids, and/or a salt thereof, include formic acid, acetic acid,propionic acid, butyric acid, valeric acid, caproic acid, entanthicacid, caprylic acid, pelargonic acid, capric acid, undecylic acid,lauric acid, tridecylic acid, lauric acid, tridecylic acid, myristicacid, pentadecylic acid, palmitic acid, margaric acid, stearic acid,nonadecylic acid, arachidic acid, lactic acid, a salt thereof, and amixture thereof. In some instances, the hair-treatment compositionsinclude at least lactic acid, and/or a salt thereof.

In some cases, the hair-treatment compositions may include one or moredicarboxylic acids, and/or a salt thereof. Non-limiting examples ofdicarboxylic acids, and/or a salt thereof, include oxalic acid, malonicacid, malic acid, glutaric acid, citraconic acid, succinic acid, adipicacid, tartaric acid, fumaric acid, maleic acid, sebacic acid, azelaicacid, dodecanedioic acid, phthalic acid, isophthalic acid, terephthalicacid, 2,6-naphthalene dicarboxylic acid, a salt thereof, and a mixturethereof. In some instances, the hair-treatment compositions includemaleic acid, malonic acid, malic acid, oxalic acid, a salt thereof, anda mixture thereof.

In some cases, the hair-treatment compositions may include one or moretricarboxylic acids, and/or a salt thereof. Non-limiting examples oftricarboxylic acids, and/or a salt thereof, include citric acid,isocitric acid, aconitric acid, propane-1,2,3-tricarboxylic acid,benzene-1,3,5-tricarboxylic acid, a salt thereof, and a mixture thereof.In some instances, the hair-treatment compositions include at leastcitric acid, and/or a salt thereof.

In some embodiments, the compositions contain at least one non-polymerictricarboxylic acid, and/or a salt thereof (for example, citric acid,and/or a salt thereof) and at least one non-polymeric dicarboxylic acid,and/or a salt thereof (for example, maleic acid, and/or a salt thereof).

The total amount of the one or more mono, di, and/or tricarboxylicacids, and/or a salt thereof, is at least 0.5 wt. %, based on the totalweight of the hair-treatment composition. In some cases, the totalamount of the one or more mono, di, and/or tricarboxylic acids, and/or asalt thereof, is at 0.6, 0.7, 0.8, 0.9, or 1 wt. % up to about 15, 20,25, or 30 wt. %. Furthermore, the total amount of the one or more mono,di, and/or tricarboxylic acids, and/or a salt thereof, may be at least0.5 wt. % to about 50 wt. %, at least 0.5 wt. % to about 40 wt. %, atleast 0.5 wt. % to about 30 wt. %, at least 0.5 wt. % to about 20 wt. %,at least 0.5 wt. % to about 10 wt. %, at least 0.5 wt. % to about 5 wt.%, at least 0.8 wt. % to about 50 wt. %, at least 0.8 wt. % to about 40wt. %, at least 0.8 wt. % to about 30 wt. %, about 0.8 to about 20 wt.%, about 0.8 to about 10 wt. %, about 0.8 wt. % to about 5 wt. %, about1 wt. % to about 50 wt. %, about wt. % to about 40 wt. %, about 1 wt. %to about 30 wt. %, about 1 wt. % to about 20 wt. %, about 1 wt. % toabout 10 wt. %, about 1 wt. % to about 5 wt. %, about 2 wt. % to about50 wt. %, about 2 wt. % to about 40 wt. %, about 2 wt. % to about 30 wt.%, about 2 wt. % to about 20 wt. %, about 2 wt. % to about 10 wt. %, orabout 2 wt. % to about 5 wt. %.

The total amount of water in the hair-treatment compositions may varydepending on the type of hair-treatment composition and the desiredconsistency, viscosity, etc. In some cases, the total amount of water isabout 50 to 95 wt. %, based on the total weight of the hair-treatmentcomposition, including all ranges and subranges therebetween. The totalamount of water may be about 50 to about 90 wt. %, about 50 to about 85wt. %, about 60 to 95 wt. %, about 60 to 90 wt. %, about 60 to about 85wt. %, greater than 60 to about 95 wt. %, greater than 60 to about 90wt. %, greater than 60 to about 85 wt. %, about 65 to about 95 wt. %,about 65 to about 90 wt. %, about 65 to about 85 wt. %, about 70 toabout 95 wt. %, or about 70 to about 90 wt. %. In some instances,especially when the hair-treatment composition is a shampoo, the totalamount of water is greater than 60 wt. %. For example, the total amountof water may be at least 61, 62, 63, 64, 65, 66, 67, 68, 69, or 70 wt. %up to about 90 or 95 wt. %. Likewise, the total amount of water may beat least 61, 62, 63, 64, 65, 66, 67, 68, 69, or 70 wt. % to about 95 wt.%, 61, 62, 63, 64, 65, 66, 67, 68, 69, or 70 wt. % to about 90 wt. %, orabout 70 wt. % to about 90 wt. %.

One or more fatty compounds can be included in the hair-treatmentcompositions. Non-limiting examples of fatty compounds include oils,mineral oil, alkanes, fatty alcohols, fatty acids, fatty alcoholderivatives, fatty acid derivatives (such as alkoxylated fatty acids orpolyethylene glycol esters of fatty acids or propylene glycol esters offatty acids or butylene glycol esters of fatty acids or esters ofneopentyl glycol and fatty acids or polyglycerol/glycerol esters offatty acids or glycol diesters or diesters of ethylene glycol and fattyacids or esters of fatty acids and fatty alcohols, esters of short chainalcohols and fatty acids), esters of fatty alcohols, hydroxy-substitutedfatty acids, waxes, triglyceride compounds, lanolin, ceramide, and amixture thereof. For instance, one or more fatty compounds may beselected from the group consisting of glycol distearate, PEG-55propylene glycol oleate, cetearyl alcohol, soybean oil, cetyl esters,isopropyl myristate, cetearyl alcohol, orbigynya oleifera seed oil,propylene glycol dicaprylate/dicaprate, mineral oil, undecane,tridecane, 2-oleamido-1,3-octadecanediol (ceramide), and a mixturethereof.

Non-limiting examples of the fatty alcohols, fatty acids, fatty alcoholderivatives, and fatty acid derivatives are found in InternationalCosmetic Ingredient Dictionary, Sixteenth Edition, 2016, which isincorporated by reference herein in its entirety.

Fatty alcohols useful herein include those having from about 10 to about30 carbon atoms, from about 12 to about 22 carbon atoms, and from about16 to about 22 carbon atoms. These fatty alcohols can be straight orbranched chain alcohols and can be saturated or unsaturated. Nonlimitingexamples of fatty alcohols include decyl alcohol, undecyl alcohol,dodecyl, myristyl, cetyl alcohol, stearyl alcohol, isostearyl alcohol,isocetyl alcohol, behenyl alcohol, linalool, oleyl alcohol, cholesterol,cis4-t-butylcyclohexanol, myricyl alcohol and a mixture thereof. In somecases, the fatty alcohols are those selected from the group consistingof cetyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol,and a mixture thereof.

Fatty acids useful herein include those having from about 10 to about 30carbon atoms, from about 12 to about 22 carbon atoms, and from about 16to about 22 carbon atoms. These fatty acids can be straight or branchedchain acids and can be saturated or unsaturated. Also included arediacids, triacids, and other multiple acids which meet the carbon numberrequirement herein. Also included herein are salts of these fatty acids.Nonlimiting examples of fatty acids include lauric acid, palmitic acid,stearic acid, behenic acid, arichidonic acid, oleic acid, isostearicacid, sebacic acid, and a mixture thereof. In some cases, the fattyacids are selected from the group consisting of palmitic acid, stearicacid, and a mixture thereof.

Fatty alcohol derivatives include alkyl ethers of fatty alcohols,alkoxylated fatty alcohols, alkyl ethers of alkoxylated fatty alcohols,esters of fatty alcohols and a mixture thereof. Nonlimiting examples offatty alcohol derivatives include materials such as methyl stearylether; 2-ethylhexyl dodecyl ether; stearyl acetate; cetyl propionate;the ceteth series of compounds such as ceteth-1 through ceteth-45, whichare ethylene glycol ethers of cetyl alcochol, wherein the numericdesignation indicates the number of ethylene glycol moieties present;the steareth series of compounds such as steareth-1 through 10, whichare ethylene glycol ethers of steareth alcohol, wherein the numericdesignation indicates the number of ethylene glycol moieties present;ceteareth 1 through ceteareth-10, which are the ethylene glycol ethersof ceteareth alcohol, i.e. a mixture of fatty alcohols containingpredominantly cetyl and stearyl alcohol, wherein the numeric designationindicates the number of ethylene glycol moieties present; C1-C30 alkylethers of the ceteth, steareth, and ceteareth compounds just described;polyoxyethylene ethers of branched alcohols such as octyldodecylalcohol, dodecylpentadecyl alcohol, hexyldecyl alcohol, and isostearylalcohol; polyoxyethylene ethers of behenyl alcohol; PPG ethers such asPPG-9-steareth-3, PPG-11 stearyl ether, PPG8-ceteth-1, and PPG-10 cetylether; and a mixture thereof.

Non-limiting olyglycerol ester of fatty acids include those of thefollowing formula:

wherein the average value of n is about 3 and R¹, R² and R³ each mayindependently be a fatty acid moiety or hydrogen, provided that at leastone of R¹, R², and R³ is a fatty acid moiety. For instance, R¹, R² andR³ may be saturated or unsaturated, straight or branched, and have alength of C₁-C₄₀, C₁-C₃₀, C₁-C₂₅, or C₁-C₂₀, C₁-C₁₆, or C₁-C₁₀. Forexample, glyceryl monomyristate, glyceryl monopalmitate, glycerylmonostearate, glyceryl isostearate, glyceryl monooleate, glyceryl esterof mono(olive oil fatty acid), glyceryl dioleate and glyceryldistearate. Additionally, non-limiting examples of nonionic polyglycerolesters of fatty acids include polyglyceryl-4 caprylate/caprate,polyglyceryl-10 caprylate/caprate, polyglyceryl-4 caprate,polyglyceryl-10 caprate, polyglyceryl-4 laurate, polyglyceryl-5 laurate,polyglyceryl-6 laurate, polyglyceryl-10 laurate, polyglyceryl-10cocoate, polyglyceryl-10 myristate, polyglyceryl-10 oleate,polyglyceryl-10 stearate, and a mixture thereof.

The fatty acid derivatives are defined herein to include fatty acidesters of the fatty alcohols as defined above, fatty acid esters of thefatty alcohol derivatives as defined above when such fatty alcoholderivatives have an esterifiable hydroxyl group, fatty acid esters ofalcohols other than the fatty alcohols and the fatty alcohol derivativesdescribed above, hydroxy-substituted fatty acids, and a mixture thereof.Nonlimiting examples of fatty acid derivatives include ricinoleic acid,glycerol monostearate, 12-hydroxy stearic acid, ethyl stearate, cetylstearate, cetyl palmitate, polyoxyethylene cetyl ether stearate,polyoxyethylene stearyl ether stearate, polyoxyethylene lauryl etherstearate, ethyleneglycol monostearate, polyoxyethylene monostearate,polyoxyethylene distearate, propyleneglycol monostearate,propyleneglycol distearate, trimethylolpropane distearate, sorbitanstearate, polyglyceryl stearate, dimethyl sebacate, PEG-15 cocoate,PPG-15 stearate, glyceryl monostearate, glyceryl distearate, glyceryltristearate, PEG-8 laurate, PPG-2 isostearate, PPG-9 laurate, and amixture thereof. Preferred for use herein are glycerol monostearate,12-hydroxy stearic acid, and a mixture thereof.

When one or more fatty compounds are included in the hair-treatmentcompositions, the total amount of the one or more fatty compounds may beabout 0.1 to about 40 wt. %, based on the total weight of thehair-treatment composition, including all ranges and subrangestherebetween. In some cases, the total amount of the one or more fattycompounds may be about 0.1 to about 30 wt. %, about 0.1 to about 20 wt.%, about 0.1 to about 20 wt. %, about 0.1 to about 10 wt. %, about 1 wt.% to about 40 wt. %, about 1 wt. % to about 30 wt. %, about 1 wt. % toabout 20 wt. %, or about 1 wt. % to about 10 wt. %.

The hair-treatment compositions may also include one or more silicones.Non-limiting examples of silicones include polyorganosiloxanes,polyalkylsiloxanes, polyarylsiloxanes, polyalkarylsiloxanes,polyestersiloxanes, and mixtures thereof. In particular, suitableexamples of silicones include dimethicone, cyclomethicone,amodimethicone, trimethyl silyl amodimethicone, phenyl trimethicone,trimethyl siloxy silicate, and mixtures thereof. A more exhaustive listof silicones that may be included in the hair-treatment compositions isprovided later, under the heading “Silicones.”

The total amount of the one or more silicones can vary but is typicallyabout 0.1 to about 40 wt. %, based on the total weight of thehair-treatment compositions, including all ranges and subrangestherebetween. In some cases, the total amount of the one or moresilicones is about 0.1 to about 30 wt. %, about 0.1 to about 20 wt. %,about 0.1 to about 10 wt. %, about 0.1 to about 5 wt. %, about 1 toabout 30 wt. %, about 1 to about 20 wt. %, about 1 to about 15 wt. %,about 1 to about 10 wt. %, or about 1 to about 5 wt. %.

Cationic, anionic, amphoteric/zwitterionic, nonionic surfactants, and amixture thereof, may be included in the hair-treatment compositions. Thetype of surfactant included in a hair-treatment composition can varydepending on the purpose of the hair-treatment composition. For example,shampoos often include at least one or more anionic surfactants, and mayalso include one or more amphoteric surfactants. Conditioners ofteninclude at least a cationic surfactant.

The total amount of the one or more surfactants, regardless of thetype(s) of surfactants included in the hair-treatment compositions canvary, especially depending on the type of hair-treatment composition.Nonetheless, a general amount of total surfactant(s) is about 0.1 toabout 40 wt. %, based on the total weight of the hair-treatmentcomposition, including all ranges and subranges therebetween. In somecases, the total amount of the one or more surfactants is about 0.1 toabout 35 wt. %, about 0.1 to about 30 wt. %, about 0.1 to about 25 wt.%, about 0.1 to about 20 wt. %, about 0.1 to about 15 wt. %, about 0.1to about 10 wt. %, about 0.1 to about 5 wt. %, about 0.5 to about 40 wt.%, about 0.5 to about 35 wt. %, about 0.5 to about 30 wt. %, about 0.5to about 25 wt. %, about 0.5 to about 20 wt. %, about 0.5 to about 15wt. %, about 0.5 to about 10 wt. %, about 0.5 to about 5 wt. %, about 1wt. % to about 40 wt. %, about 1 wt. % to about 30 wt. %, about 1 wt. %to about 20 wt. %, about 1 wt. % to about 15 wt. %, about 1 wt. % toabout 10 wt. %, or about 1 wt. % to about 5 wt. %.

The hair-treatment compositions may include one or more anionicsurfactants. Non-limiting examples of anionic surfactants include alkylsulfates, alkyl ether sulfates, acyl isethionates, acyl glycinates, acyltaurates, acyl amino acids, acyl sarcosinates, sulfosuccinates,sulfonates, and a mixture thereof, wherein the alkyl and acyl groups ofall these compounds comprise from 6 to 24 carbon atoms. In some cases,anionic sulfate surfactants may be excluded from the one or more anionicsurfactants. In such cases, the one or more anionic surfactants may beselected from the group consisting of acyl isethionates, acylglycinates, acyl taurates, acyl amino acids, acyl sarcosinates,sulfosuccinates, sulfonates, and a mixture thereof, wherein the alkyland acyl groups of all these compounds comprise from 6 to 24 carbonatoms. A more exhaustive list of anionic surfactants that may beincluded in the hair-treatment compositions is provided later, under theheading “Anionic Surfactants.”

The total amount of the one or more anionic surfactants may be about 1to about 40 wt. %, based on the total weight of the hair-treatmentcomposition, including all ranges and subranges therebetween.Furthermore, the total amount of the one or more anionic surfactants maybe about 1 to about 35 wt. %, about 1 to about 30 wt. %, about 5 wt. %to about 40 wt. %, about 5 wt. % to about 25 wt. %, about 5 wt. % toabout 30 wt. %, about 10 wt. % to about 40 wt. %, about 10 wt. % toabout 35 wt. %, or about 15 wt. % to about 40 wt. %.

As mentioned previously, one or more amphoteric surfactants may beincluded in the hair-treatment compositions. Non-limiting examples ofamphoteric surfactants include betaines, sultaines, amphoacetates,amphoproprionates, and a mixture thereof. In some cases, thehair-treatment compositions include one or more betaines, for example,alkyl betaines, alkyl amidopropyl betaines, alkyl sulphobetaines(sultaines), and a mixture thereof. A more exhaustive list of amphotericsurfactants that may be included in the hair-treatment compositions isprovided later, under the heading “Amphoteric Surfactants.”

When one or more amphoteric surfactants are included in thehair-treatment compositions, the total amount of the one or moreamphoteric surfactants is typically about 0.1 to about 20 wt. %, basedon the total weight of the hair-treatment composition, including allranges and subranges therebetween. Additionally, the total amount of theone or more amphoteric surfactants may be about 0.1 to about 15 wt. %,about 0.1 to about 10 wt. %, about 0.1 to about 5 wt. %, about 0.1 toabout 3 wt. %, about 0.5 to about 15 wt. %, about 0.5 to about 10 wt. %,about 0.5 to about 5 wt. %, about 0.5 to about 3 wt. %, about 1 wt. % toabout 15 wt. %, about 1 wt. % to about 10 wt. %, or about 1 wt. % toabout 5 wt. %.

In some instances, one or more cationic surfactants may be included inthe hair treatment compositions, especially when the hair-treatmentcomposition is a conditioner. Non-limiting examples of cationicsurfactants include cetrimonium chloride, stearimonium chloride,behentrimonium chloride, behentrimonium methosulfate,behenamidopropyltrimonium methosulfate, stearamidopropyltrimoniumchloride, arachidtrimonium chloride, distearyldimonium chloride,dicetyldimonium chloride, tricetylmonium chloride, oleamidopropyldimethylamine, linoleamidopropyl dimethylamine, isostearamidopropyldimethylamine, oleyl hydroxyethyl imidazoline,stearamidopropyldimethylamine, behenamidopropyldimethylamine,behenamidopropyldiethylamine, behenamidoethyldiethyl-amine,behenamidoethyldimethylamine, arachidamidopropyldimethylamine,arachidamidopropyidiethylamine, arachidamidoethyidiethylamine,arachidamidoethyidimethylamine, and a mixture thereof. A more exhaustivelist of cationic surfactants that may be included in the hair-treatmentcompositions is provided later, under the heading “CationicSurfactants.”

When one or more cationic surfactants is included in the hair-treatmentcompositions, the total amount of the one or more cationic surfactantsis typically about 0.1 to about 20 wt. %, based on the total weight ofthe hair-treatment composition, including all ranges and subrangestherebetween. Additionally, the total amount of the one or more cationicsurfactants may be about 0.1 to about 15 wt. %, about 0.1 to about 10wt. %, about 0.1 to about 5 wt. %, about 0.1 to about 3 wt. %, about 0.5to about 15 wt. %, about 0.5 to about 10 wt. %, about 0.5 to about 5 wt.%, about 0.5 to about 3 wt. %, about 1 wt. % to about 15 wt. %, about 1wt. % to about 10 wt. %, or about 1 wt. % to about 5 wt. %.

In some instances, the hair-treatment compositions may include one ormore cationic polymers. Non-limiting examples of cationic polymersinclude poly(methacryloyloxyethyl trimethylammonium chloride),polyquaternium-37, quaternized cellulose derivatives, polyquaternium-4,polyquaternium-10, cationic alkyl polyglycosides, cationized honey,cationic guar derivatives, polymeric dimethyl diallyl ammonium salts andcopolymers thereof with esters and amides of acrylic acid andmethacrylic acid, copolymers of vinyl pyrrolidone with quaternizedderivatives of dialkylaminoalkyl acrylate and methacrylate, vinylpyrrolidone-vinyl imidazolium methochloride copolymers, quaternizedpolyvinyl alcohol, polyquaternium-2, polyquaternium-7,polyquaternium-17, polyquaternium-18, polyquaternium-24,polyquaternium-27, and a mixture thereof. In some instances, the one ormore cationic polymers may be selected from the group consisting ofpolyquaternium-4, polyquaternium-10, cationic guar derivatives, and amixture thereof. A more exhaustive list of cationic polymers that may beincluded in the hair-treatment compositions is provided later, under theheading “Cationic Polymers.”

The total amount of the one or more cationic polymers, when included inthe hair-treatment composition, is typically about 0.1 to about 15 wt.%, based on the total weight of the composition, including all rangesand subranges therebetween. The total amount of the one or more cationicpolymers may be about 0.1 to about 10 wt. %, about 0.1 to about 8 wt. %,about 0.1 to about 6 wt. %, about 0.1 to about 5 wt. %, about 0.5 toabout 15 wt. %, about 0.5 to about 10 wt. %, about 0.5 to about 8 wt. %,about 0.5 to about 6 wt. %, about 0.5 to about 5 wt. %, about 1 to about15 wt. %, about 1 to about 10 wt. %, about 1 to about 8 wt. %, about 1to about 6 wt. %, or about 1 to about 5 wt. %.

The hair-treatment composition may also include one or more alkylaminesand/or alkanolamines. Non-limiting examples of alkylamines andalkanolamines include those of the following formula:

NR₃R₄R₅

wherein R₃, R₄ and R₅ are independently H, C₁-C₄₀ alkyl, C₁-C₄₀monohydroxyalkyl or C₂-C₄₀ polyhydroxyalkyl, provided that at least oneof R₃, R₄ and R₅ is an alkyl or mono or polyhydroxyalkyl. Further R₃, R₄and R₅ may also independently be H, C₁-C₂₀ alkyl, C₁-C₂₀monohydroxyalkyl or C₂-C₂₀ polyhydroxyalkyl, provided that at least oneof R₃, R₄ and R₅ is an alkyl or mono or polyhydroxyalkyl. Also, R₃, R₄and R₅ may also independently be H, C₁-C₁₀ alkyl, C₁-C₁₀monohydroxyalkyl or C₂-C₁₀ polyhydroxyalkyl, provided that at least oneof R₃, R₄ and R₅ is an alkyl or mono or polyhydroxyalkyl.

In some cases, the hair-treatment compositions include one or morealkanolamines. Non-limiting examples include monoethanol amine,diethanolamine, triethanolamine, monoisopropanolamine,diisopropanolamine, N-dimethylamino-ethanolamine,2-amino-2-methyl-1-propanol, triisopropanolamine,2-amino-2-methyl-1,3-propanediol, 3-amino-1,2-propanediol,3-dimethylamino-1,2-propanediol, tris(hydroxymethylamino) methane, and amixture thereof.

The total amount of the one or more alkylamines and/or alkanolamines canvary but is typically about 0.1 to about 20 wt. %, based on the totalweight of the hair-treatment composition, including all ranges andsubranges therebetween. The total amount of the one or more alkylaminesand/or alkanolamines may be about 0.1 to about 15 wt. %, about 0.1 toabout 10 wt. %, or about 0.1 to about 5 wt. %.

In some instances, the hair-treatment compositions include one or morecationic polymers. Non-limiting examples of cationic polymers includepoly(methacryloyloxyethyl trimethylammonium chloride),polyquaternium-37, quaternized cellulose derivatives, polyquaternium-4,polyquaternium-10, cationic alkyl polyglycosides, cationized honey,cationic guar derivatives, polymeric dimethyl diallyl ammonium salts andcopolymers thereof with esters and amides of acrylic acid andmethacrylic acid, copolymers of vinyl pyrrolidone with quaternizedderivatives of dialkylaminoalkyl acrylate and methacrylate, vinylpyrrolidone-vinyl imidazolium methochloride copolymers, quaternizedpolyvinyl alcohol, polyquaternium-2, polyquaternium-7,polyquaternium-17, polyquaternium-18, polyquaternium-24,polyquaternium-27, and a mixture thereof. In some instances, the one ormore cationic polymers may be selected from the group consisting ofpolyquaternium-4, polyquaternium-10, cationic guar derivatives, and amixture thereof.

The cationic polymers can be a monoalkyl quaternary amine, such asstearyltrimonium chloride, soyatrimonium chloride or coco-ethyldimoniumethosulfate. Other suitable cationic polymers include, but are notlimited to, behentrimonium chloride, dialkyl quaternary amines, such asdicetyldimonium chloride, dicocodimethyl ammonium chloride ordistearyldimethyl ammonium chloride; and polyquaternium compounds, suchas Polyquaternium-6, Polyquaternium-22 or Polyquaternium-5.

For example, cationic polymers may be chosen from polyquaterium-10 (alsocalled quaternized polyhydroxyethyl cellulose), cetrimonium chloride(also called cetyl trimethyl ammonium chloride, CTAC), behentrimoniumchloride (also known as docosyl trimethyl ammonium chloride),behentrimonium methosulfate, steartrimonium chloride, stearalkoniumchloride, dicetyldimonium chloride, hydroxypropyltrimonium chloride,cocotrimonium methosulfate, olealkonium chloride, steartrimoniumchloride, babassuamidopropalkonium chloride, brassicamidopropyldimethylamine, Quaternium-91, Salcare/PQ-37, Quaternium-22,Quaternium-87, Polyquaternium-4, Polyquaternium-6, Polyquaternium-11,Polyquaternium-44, Polyquaternium-67, amodimethicone, lauryl betaine,Polyacrylate-1 Crosspolymer, steardimonium hydroxypropyl hydrolyzedwheat protein, behenamidopropyl PG-dimonium chloride, lauryldimoniumhydroxypropyl hydrolyzed soy protein, aminopropyl dimethicone,Quaterium-8, and dilinoleamidopropyl dimethylamine dimethicone PEG-7phosphate.

In some instances, the cationic polymers are cationic conditioningpolymers. Examples of cationic conditioning polymers that can be usedinclude, without limitation, cationic cellulose, cationic proteins, andcationic polymers. The cationic polymers can have a vinyl group backboneof amino and/or quaternary ammonium monomers. Cationic amino andquaternary ammonium monomers include, without limitation, dialkylaminoalkylmethacrylate, monoalkylaminoalkyl acrylate, monoalkylaminoalkylmethacrylate, trialkyl methacryoloxyalkyl ammonium salt, trialkylacryloxyalkyl ammonium salts, diallyl quaternary ammonium salts, vinylcompounds substituted with dialkyl aminoalkyl acrylate, and vinylquaternary ammonium monomers having cyclic cationic nitrogen containingrings such as pyridinium, imidazolium, or quaternized pyrrolidine. Otherexamples of cationic conditioning polymers that can be used include,without limitation, hydroxypropyltrimonium honey, cocodimonium silkamino acids, cocodimonium hydroxypropyl hydrolyzed wheat or silkprotein, polyquaternium-5, polyquaternium-11, polyquaternium-2,polyquaternium-4, polyquaternium-6, polyquaternium-7, polyquaternium-14,polyquaternium-16, polyquaternium-22, polyquaternium-10, and guarhydroxypropyltrimonium chloride.

In some cases quaternized polymeric cationic polymers are particularlyuseful. Particularly preferred are quaternary nitrogen polymers preparedby the polymerization of a dialkyldiallylammonium salt or copolymerthereof in which the alkyl group contains 1 to about 18 carbon atoms,and more preferably where the alkyl group is methyl or ethyl. Detailsconcerning the preparation of these polymers can be found in U.S. Pat.Nos. 3,288,770, 3,412,019 and 4,772,462, incorporated herein byreference. For example, cationic homopolymers and copolymers ofpolydiallyldimethylammonium chloride are available in aqueouscompositions sold under the trademark MERQUAT by the Calgon Corporation,subsidiary of Merck & Co., Pittsburgh, Pa. The homopolymer, which isnamed Polyquaternium-6 is sold under the trademark MERQUAT-100, and isdescribed as having a weight average molecular weight of approximately100,000. A copolymer reaction product of dimethyldiallylammoniumchloride with acrylamide monomers is named Polyquaternium-7 is describedas having a weight average molecular weight of approximately 500,000 andis sold under the trademark MERQUAT-550. Another copolymer reactionproduct of dimethyldiallylammonium chloride with acrylic acids having aweight average molecular weight from about 50,000 to about 10,000,000has the name Polyquaternium-22 and is sold under the trademarkMERQUAT-280. Polyquaternium-6 is particularly preferred.

Other polymeric conditioners include cationic copolymers ofmethylvinylimidazolium chloride and vinyl pyrrolidone, sold commerciallyby BASF Aktiengesellschaft, West Germany under the trademark LUVIQUAT atthree comonomer ratios, namely at ratios of 95/5, 50/50 and 30/70methylvinylimidazolium chloride to polyvinylpyrrolidone. Thesecopolymers at all three comonomer ratios have the name Polyquaternium16. Polymeric conditioners also include cationic cellulosic polymers ofhydroxyethyl cellulose reacted with epichlorohydrin and quaternized withtrimethylamine, sold under the trademark POLYMER JR in various viscositygrades and molecular sizes by Union Carbide Corporation, Danbury, Conn.These series of polymers are named Polyquaternium 10. Also useful arequaternized copolymers of hydroxyethylcellulose anddimethyldimethylammonium chloride, having the name Polyquaternium-4,sold in varying molecular weights under the trademark CELQUAT byNational Starch and Chemical Corporation, Bridgewater, N.J.

Smaller molecule cationic non-polymeric conditioning agents can also beutilized herein. Exemplary small-molecule conditioning agents caninclude monofunctional or difunctional quaternary ammonium compounds,such as stearyldimethylbenzylammonium chloride, dimethyldi-(hydrogenatedtallow)ammonium chloride, and the like. Non-polymeric conditioningagents can also include the quaternary ammonium salts of gluconamidederivatives, such asgamma-gluconamidopropyldimethyl-2-hydroxyethyl-ammonium chloride andminkamidopropyldimethyl-2-hydroxyethylammonium chloride identifiedrespectively by the names Quaternium 22 and Quaternium 26. Details forthe preparation of these materials are found in U.S. Pat. Nos. 3,766,267and 4,012,398, respectively, and the materials are sold under thetrademark CERAPHYL by Van Dyk & Co., Belleville, N.J. Also useful arebis-quaternary ammonium compounds which are dimers, such as 2-hydroxypropylene-bis-1,3-(dimethylstearyl ammonium chloride, designated thename, Hydroxypropyl Bisstearyldimonium chloride. The preparation ofthese and other bis-quat materials is described in U.S. Pat. No.4,734,277, and such materials are sold under the trademark JORDAQUATDIMER by Jordan Chemical Company, Folcroft, Pa.

Exemplary unquaternized polymers having tertiary amino nitrogen groupsthat become quaternized when protonated can include water-solubleproteinaceous quaternary ammonium compounds. Cocodimonium hydrolyzedanimal protein, for example, is the name for a chemically-modifiedquaternary ammonium derivative of hydrolyzed collagen protein havingfrom about 12 to about 18 carbons in at least one aliphatic alkyl group,a weight average molecular weight from about 2500 to about 12,000, andan isoionic point in a range from about 9.5 to about 11.5. This materialand structurally related materials are sold under the trademarks CROQUATand CROTEIN by Croda, Inc., New York, N.Y.

The total amount of the one or more cationic polymers, when included inthe hair-treatment composition, is typically about 0.01 to about 15 wt.%, based on the total weight of the composition, including all rangesand subranges therebetween. The total amount of the one or more cationicpolymers may be about 0.01 to about 8 wt. %, about 0.01 to about 6 wt.%, about 0.01 to about 5 wt. %, about 0.05 to about 8 wt. %, about 0.05to about 6 wt. %, about 0.05 to about 5 wt. %, about 0.1 to about 10 wt.%, about 0.1 to about 8 wt. %, about 0.1 to about 6 wt. %, or about 0.1to about 5 wt.

The hair-treatment composition may include one or more “water-solublesolvents.” The term “water-soluble solvent” is interchangeable with theterm “water-miscible solvent” and means a compound that is liquid at 25°C. and at atmospheric pressure (760 mmHg), and it has a solubility of atleast 50% in water under these conditions.

Water-soluble solvents include, for example, glycerin, C₁₋₄ alcohols,organic solvents, fatty alcohols, fatty ethers, fatty esters, polyols,glycols, vegetable oils, mineral oils, liposomes, laminar lipidmaterials, and a mixture thereof. As examples of organic solvents,non-limiting mentions can be made of monoalcohols and polyols such asethyl alcohol, isopropyl alcohol, propyl alcohol, benzyl alcohol, andphenylethyl alcohol, or glycols or glycol ethers such as, for example,monomethyl, monoethyl and monobutyl ethers of ethylene glycol, propyleneglycol or ethers thereof such as, for example, monomethyl ether ofpropylene glycol, butylene glycol, hexylene glycol, dipropylene glycolas well as alkyl ethers of diethylene glycol, for example monoethylether or monobutyl ether of diethylene glycol. Other suitable examplesof organic solvents are ethylene glycol, propylene glycol, butyleneglycol, hexylene glycol, propane diol, glycerin, and a mixture thereof.The organic solvents can be volatile or non-volatile compounds.

Further non-limiting examples of water-soluble solvents which may beused include alkanediols (polyhydric alcohols) such as glycerin,1,2,6-hexanetriol, trimethylolpropane, ethylene glycol, propyleneglycol, diethylene glycol, triethylene glycol, tetraethylene glycol,pentaethylene glycol, dipropylene glycol, 2-butene-1,4-diol,2-ethyl-1,3-hexanediol, 2-methyl-2,4-pentanediol, 1,2-octanediol,1,2-hexanediol, 1,2-pentanediol, and 4-methyl-1,2-pentanediol; alkylalcohols having 1 to 4 carbon atoms such as ethanol, methanol, butanol,propanol, and isopropanol; glycol ethers such as ethylene glycolmonomethyl ether, ethylene glycol monoethyl ether, ethylene glycolmonobutyl ether, ethylene glycol monomethyl ether acetate, diethyleneglycol monomethyl ether, diethylene glycol monoethyl ether, diethyleneglycol mono-n-propyl ether, ethylene glycol mono-iso-propyl ether,diethylene glycol mono-iso-propyl ether, ethylene glycol mono-n-butylether, ethylene glycol mono-t-butyl ether, diethylene glycolmono-t-butyl ether, 1-methyl-1-methoxybutanol, propylene glycolmonomethyl ether, propylene glycol monoethyl ether, propylene glycolmono-t-butyl ether, propylene glycol mono-n-propyl ether, propyleneglycol mono-iso-propyl ether, dipropylene glycol monomethyl ether,dipropylene glycol monoethyl ether, dipropylene glycol mono-n-propylether, and dipropylene glycol mono-iso-propyl ether; 2-pyrrolidone,N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone, formamide,acetamide, dimethyl sulfoxide, sorbit, sorbitan, acetine, diacetine,triacetine, and sulfolane.

Polyhydric alcohols are useful. Examples of polyhydric alcohols includeglycerin, ethylene glycol, diethylene glycol, triethylene glycol,propylene glycol, dipropylene glycol, tripropylene glycol,1,3-butanediol, 2,3-butanediol, 1,4-butanediol, 3-methyl-1,3-butanediol,1,5-pentanediol, tetraethylene glycol, 1,6-hexanediol,2-methyl-2,4-pentanediol, polyethylene glycol, 1,2,4-butanetriol,1,2,6-hexanetriol, and a mixture thereof.

Polyol compounds may also be used. Non-limiting examples include thealiphatic diols, such as 2-ethyl-2-methyl-1,3-propanediol,3,3-dimethyl-1,2-butanediol, 2,2-diethyl-1,3-propanediol,2-methyl-2-propyl-1,3-propanediol, 2,4-dimethyl-2,4-pentanediol,2,5-dimethyl-2,5-hexanediol, 5-hexene-1,2-diol, and2-ethyl-1,3-hexanediol, and a mixture thereof.

The total amount of the water-soluble solvent(s) which is separate thanthe water in the hair-treatment compositions) may vary, but in somecases are about 0.1 to about 50 wt. %, based on the total weight of thecomposition, including all ranges and subranges therebetween. The totalamount of the water-soluble solvents (separate from the water in thecompositions), is about 0.1 to about 40 wt. %, about 0.1 to about 30 wt.%, about 0.1 to about 20 wt. %, about 0.1 to about 10 wt. %, or about0.1 to about 5 wt. %.

The hair-treatment compositions may contain one or more thickeners (alsoreferred to as thickening agents or viscosity modifying agents). Classesof such agents include, but are not limited to, viscous liquids, such aspolyethylene glycol, semisynthetic polymers, such as semisyntheticcellulose derivatives, synthetic polymers, such as carbomers,poloxamers, and acrylates/beheneth-25 methacrylate copolymer, acrylatescopolymer, polyethyleneimines (e.g., PEI-10), naturally occurringpolymers, such as acacia, tragacanth, alginates (e.g., sodium alginate),carrageenan, vegetable gums, such as xanthan gum, petroleum jelly,waxes, particulate associate colloids, such as bentonite, colloidalsilicon dioxide, and microcrystalline cellulose, surfactants, such asPPG-2 hydroxyethyl coco/isostearamide, emulsifiers, such asdisteareth-75 IPDI, and salts, such as sodium chloride, starches, suchas hydroxypropyl starch phosphate, potato starch (modified orunmodified), celluloses such as hydroxyethylcellulose, guars such ashydroxypropyl guar, and a mixture thereof.

In some cases, the thickening agents may include one or more associativethickening polymers such as anionic associative polymers, amphotericassociative polymers, cationic associative polymers, nonionicassociative polymers, and a mixture thereof. A non-limiting example ofan amphoteric associative polymer is acrylates/beheneth-25methacrylatecopolymer, sold under the tradename NOVETHIX L-10 (Lubrizol).Non-limiting examples of anionic associative polymers include INCI name:acrylates copolymer, sold under the tradename CARBOPOL Aqua SF-1(Lubrizol), INCI name: acrylates crosspolymer-4, sold under thetradename CARBOPOL Aqua SF-2 (Lubrizol), and a mixture thereof. Theassociative thickening polymers, for instance, the acrylates copolymerand/or the acrylates crosspolymer-4, may be neutralized in water or anaqueous solution with a neutralizing agent before the polymer is addedinto a hair-treatment composition. In some cases, associative thickeningpolymers may be useful in anionic surfactant-free hair-treatmentcompositions, in particular, anionic surfactant free conditioningshampoos. For example, the anionic surfactant-free conditioning shampoosmay include one or more anionic associative polymers.

The total amount of the one or more thickening agents may vary, but insome cases is about 0.1 to about 15 wt. %, about 0.1 to about 10 wt. %,about 0.1 to about 8 wt. %, about 0.1 to about 6 wt. %, about 0.1 toabout 5 wt. %, about 0.5 to about 10 wt. %, about 0.5 to about 8 wt. %,about 0.5 to about wt. %, about 0.5 to about 5 wt. %, about 1 to about10 wt. %, about 1 to about 8 wt. %, about 1 to about 6 wt. %, or about 1to about 5 wt. %, based on the total weight of the composition.

One or more preservatives may be included in the hair-treatmentcompositions described herein for treating hair. Suitable preservativesinclude, but are not limited to, glycerin containing compounds (e.g.,glycerin or ethylhexylglycerin or phenoxyethanol), benzyl alcohol,parabens (methylparaben, ethylparaben, propylparaben, butylparaben,isobutylparaben, etc.), sodium benzoate, benzoic acid, chlorhexidinedigluconate, ethylenediamine-tetraacetic acid (EDTA), potassium sorbate,and/or grapefruit seed extract, or a mixture thereof. Otherpreservatives are known in the cosmetics industries and includesalicylic acid, DMDM Hydantoin, Formaldahyde, Chlorphenism, Triclosan,Imidazolidinyl Urea, Diazolidinyl Urea, Sorbic Acid,Methylisothiazolinone, Sodium Dehydroacetate, Dehydroacetic Acid,Quaternium-15, Stearalkonium Chloride, Zinc Pyrithione, SodiumMetabisulfite, 2-Bromo-2-Nitropropane, Chlorhexidine Digluconate,Polyaminopropyl biguanide, Benzalkonium Chloride, Sodium Sulfite, SodiumSalicylate, Citric Acid, Neem Oil, Essential Oils (various), LacticAcid, Vitamin E (tocopherol), and a mixture thereof. In some cases, thehair-treatment compositions may include one or more preservativesselected from the group consisting of sodium benzoate, benzoic acid,chlorhexidine digluconate, chlorhexidine dihydrochloride, salicylicacid, phenoxyethanol, methyl paraben, and a mixture thereof.

The total amount of the one or more preservatives, when present, mayvary. In some cases, the total amount of the one or more preservativesis about 0.01 to about 5 wt. %, about 0.01 to about 4 wt. %, about 0.15to about 1 wt. %, or about 1 to about 3 wt. %, based on the total weightof the composition.

The hair-treatment compositions of the instant disclosure may be free oressentially free of taurate surfactants, especially if thehair-treatment composition is a shampoo. For example, the compositionsmay be free or essentially free of anionic taurate surfactants and saltsthereof, of the following formula:

R₁CO—NR₂—CH₂CH₂SO₃M,

wherein R₁ denotes a saturated or unsaturated hydrocarbon group with anaverage number of carbon atoms of 7-19; R₂ denotes hydrogen or an alkylgroup with an average number of carbon atoms of 1-3; and M denotes analkali metal, alkali earth metal, ammonium, or organic amine orderivative. Specific examples include N-methyl cocoyl taurate and sodiumcocoyl taurate.

The hair-treatment compositions, including shampoos, of the disclosuremay be free or essentially free of polyethylene glycol (PEG) and/orderivatives thereof and may be free or essentially free of propyleneglycol (PPG) and/or derivatives thereof. For example, the compositionsmay be free or essentially free of polyethylene glycols having amolecular weight of 200-10,000, or polyethylene glycols having amolecular weight of 200-1,000. Furthermore, PEGylated surfactants mayalso be excluded from the hair-treatment compositions. Non-limitingexamples of PEGylated surfactants include ethoxylated fatty esters.

The hair-treatment compositions may be packaged in a variety ofdifferent containers, such as, for example, a ready-to-use container.Non-limiting examples of useful packaging include tubes, jars, caps,unit dose packages, and bottles, including squeezable tubes and bottles.The packaging may be configured so that it can be attached to a wall,such as a wall in a bathroom, including walls of a shower or tub. Forexample, the packaging can be a container that is configured to attachto a wall, such that when pressure is applied to the container, thecomposition contained therein is expelled from one or more openings inthe bottom of the container. This type of packing and configuration isconvenient for consumers.

More exhaustive but non-limiting lists of components useful in thehair-treatment compositions disclosed herein are provided below.

Surfactants

Cationic Surfactants

The term “cationic surfactant” means a surfactant that is positivelycharged when it is contained in the composition according to thedisclosure. This surfactant may bear one or more positive permanentcharges or may contain one or more functions that are cationizable inthe composition according to the disclosure.

Non-limiting examples of cationic surfactants include behenalkoniumchloride, benzethonium chloride, cetylpyridinium chloride,behentrimonium chloride, lauralkonium chloride, cetalkonium chloride,cetrimonium bromide, cetrimonium chloride, cethylamine hydrofluoride,chlorallylmethenamine chloride (Quaternium-15), distearyldimoniumchloride (Quaternium-5), dodecyl dimethyl ethylbenzyl ammonium chloride(Quaternium-14), Quaternium-22, Quaternium-26, Quaternium-18 hectorite,dimethylaminoethylchloride hydrochloride, cysteine hydrochloride,diethanolammonium POE (10) oletyl ether phosphate, diethanolammonium POE(3)oleyl ether phosphate, tallow alkonium chloride, dimethyldioctadecylammoniumbentonite, stearalkonium chloride, domiphen bromide,denatonium benzoate, myristalkonium chloride, laurtrimonium chloride,ethylenediamine dihydrochloride, guanidine hydrochloride, pyridoxineHCl, iofetamine hydrochloride, meglumine hydrochloride,methylbenzethonium chloride, myrtrimonium bromide, oleyltrimoniumchloride, polyquaternium-1, procainehydrochloride, stearalkoniumbentonite, stearalkoniumhectonite, stearyl trihydroxyethylpropylenediamine dihydrofluoride, tallowtrimonium chloride, andhexadecyltrimethyl ammonium bromide.

The cationic surfactant(s) may be chosen from optionallypolyoxyalkylenated, primary, secondary or tertiary fatty amines, orsalts thereof, and quaternary ammonium salts, and a mixture thereof.

The fatty amines generally comprise at least one C₈-C₃₀hydrocarbon-based chain.

Examples of quaternary ammonium salts that may especially be mentionedinclude: those corresponding to the general formula (III) below:

in which the groups R₈ to R₁₁, which may be identical or different,represent a linear or branched, saturated or unsaturated aliphatic groupcomprising from 1 to 30 carbon atoms, or an aromatic group such as arylor alkylaryl, at least one of the groups R₈ to R₁₁ denoting a groupcomprising from 8 to 30 carbon atoms and preferably from 12 to 24 carbonatoms. The aliphatic groups may comprise heteroatoms especially such asoxygen, nitrogen, sulfur and halogens. The aliphatic groups are chosen,for example, from C₁-C₃₀ alkyl, C₂-C₃₀ alkenyl, C₁-C₃₀ alkoxy,polyoxy(C₂-C₆)alkylene, C₁-C₃₀ alkylamide,(C₁₂-C₂₂)alkylamido(C₂-C₆)alkyl, (C₁₂-C₂₂)alkyl acetate and C₁-C₃₀hydroxyalkyl groups; X⁻ is an anion chosen from the group of halides,phosphates, acetates, lactates, (C₁-C₄)alkyl sulfates, and (C₁-C₄)alkyl-or (C₁-C₄)alkylarylsulfonates.

Among the quaternary ammonium salts of formula (III), those that arepreferred are, on the one hand, tetraalkylammonium salts, for instancedialkyldimethylammonium or alkyltrimethylammonium salts in which thealkyl group contains approximately from 12 to 22 carbon atoms, inparticular behenyltrimethylammonium, distearyldimethylammonium,cetyltrimethylammonium or benzyldimethylstearylammonium salts, or, onthe other hand, oleocetyldimethylhydroxyethylammonium salts,palmitylamidopropyltrimethylammonium salts,stearamidopropyltrimethylammonium salts andstearamidopropyldimethylcetearylammonium salts.

In some cases it is useful to use salts such as the chloride salts ofthe following compounds:

A. a quaternary ammonium salt of imidazoline, such as, for example,those of formula (IV) below:

in which R₁₂ represents an alkenyl or alkyl group comprising from 8 to30 carbon atoms, derived for example from tallow fatty acids, R₁₃represents a hydrogen atom, a C₁-C₄alkyl group or an alkyl or alkenylgroup comprising from 8 to 30 carbon atoms, R₁₄ represents a C₁-C₄alkylgroup, R₁₅ represents a hydrogen atom or a C₁-C₄alkyl group, X⁻ is ananion chosen from the group of halides, phosphates, acetates, lactates,alkyl sulfates, alkyl- or alkylaryl-sulfonates in which the alkyl andaryl groups preferably comprise, respectively, from 1 to 20 carbon atomsand from 6 to 30 carbon atoms. R₁₂ and R₁₃ preferably denote a mixtureof alkenyl or alkyl groups containing from 12 to 21 carbon atoms,derived for example from tallow fatty acids, R₁₄ preferably denotes amethyl group, and R₁₅ preferably denotes a hydrogen atom. Such a productis sold, for example, under the name REWOQUAT W 75 by the companyEvonik;

B. a quaternary diammonium or triammonium salt, in particular of formula(V):

in which R₁₆ denotes an alkyl radical comprising approximately from 16to 30 carbon atoms, which is optionally hydroxylated and/or interruptedwith one or more oxygen atoms, R₁₇ is chosen from hydrogen or an alkylradical comprising from 1 to 4 carbon atoms or a group(R_(16a))(R_(17a))(R_(18a))N—(CH₂)₃,

R_(16a), R_(17a), R_(18a), R₁₈, R₁₉, R₂₀ and R₂₁, which may be identicalor different, being chosen from hydrogen and an alkyl radical comprisingfrom 1 to 4 carbon atoms, and X⁻ is an anion chosen from the group ofhalides, acetates, phosphates, nitrates and methyl sulfates. Suchcompounds are, for example, FINQUAT CT-P, sold by the company Innospec(Quaternium 89), and FINQUAT CT, sold by the company Innospec(Quaternium 75),

C. a quaternary ammonium salt containing at least one ester function,such as those of formula (VI) below:

in which:

R₂₂ is chosen from C₁-C₆ alkyl groups and C₁-C₆ hydroxyalkyl ordihydroxyalkyl groups;

R₂₃ is chosen from:

R₂₇, which is a linear or branched, saturated or unsaturated C₁-C₂₂hydrocarbon-based group, and a hydrogen atom,

R₂₅ is chosen from:

R₂₉, which is a linear or branched, saturated or unsaturated C₁-C₆hydrocarbon-based group, and a hydrogen atom,

R₂₄, R₂₆ and R₂₈, which may be identical or different, are chosen fromlinear or branched, saturated or unsaturated C₇-C₂₁ hydrocarbon-basedgroups;

r, s and t, which may be identical or different, are integers rangingfrom 2 to 6;

y is an integer ranging from 1 to 10;

x and z, which may be identical or different, are integers ranging from0 to 10;

X⁻ is a simple or complex, organic or mineral anion;

with the proviso that the sum x+y+z is from 1 to 15, that when x is 0then R_(n) denotes R₂₇, and that when z is 0 then R₂₅ denotes R₂₉.

The alkyl groups R₂₂ may be linear or branched, and more particularlylinear. In some cases, R₂₂ denotes a methyl, ethyl, hydroxyethyl ordihydroxypropyl group, and more particularly a methyl or ethyl group.Advantageously, the sum x+y+z is from 1 to 10.

When R₂₃ is a hydrocarbon-based group R₂₇, it may be long and containfrom 12 to 22 carbon atoms, or may be short and contain from 1 to 3carbon atoms. When R₂₅ is an R₂₉ hydrocarbon-based group, it preferablycontains 1 to 3 carbon atoms. Advantageously, R₂₄, R₂₆ and R₂₈, whichmay be identical or different, are chosen from linear or branched,saturated or unsaturated C₁₁-C₂₁ hydrocarbon-based groups, and moreparticularly from linear or branched, saturated or unsaturated C₁₁-C₂₁alkyl and alkenyl groups.

In some cases, x and z, which may be identical or different, have valuesof 0 or 1. Likewise, in some cases y is equal to 1. In some cases, r, sand t, which may be identical or different, are equal to 2 or 3, andeven more particularly are equal to 2.

The anion X⁻ is may be a halide (chloride, bromide or iodide) or analkyl sulfate, more particularly methyl sulfate. However, use may bemade of methanesulfonate, phosphate, nitrate, tosylate, an anion derivedfrom an organic acid, such as acetate or lactate, or any other anioncompatible with the ammonium containing an ester function.

The anion X⁻ is even more particularly chloride or methyl sulfate.

Use is made more particularly, in the composition according to theinvention, of the ammonium salts of formula (VI) in which:

R₂₂ denotes a methyl or ethyl group,

x and y are equal to 1;

z is equal to 0 or 1;

r, s and t are equal to 2;

R₂₃ is chosen from:

methyl, ethyl or C₁₄-C₂₂ hydrocarbon-based groups, and a hydrogen atom;

R₂₅ is chosen from:

and a hydrogen atom;

R₂₄, R₂₆ and R₂₈, which may be identical or different, are chosen fromlinear or branched, saturated or unsaturated C₁₃-C₁₇ hydrocarbon-basedgroups, and preferably from linear or branched, saturated or unsaturatedC₁₃-C₁₇ alkyl and alkenyl groups. The hydrocarbon-based groups areadvantageously linear.

Mention may be made, for example, of the compounds of formula (VI) suchas the diacyloxyethyldimethylammonium,diacyloxyethylhydroxyethylmethylammonium,monoacyloxyethyldihydroxyethylmethylammonium,triacyloxyethylmethylammonium andmonoacyloxyethylhydroxyethyldimethylammonium salts (chloride or methylsulfate in particular), and a mixture thereof. The acyl groupspreferably contain 14 to 18 carbon atoms and are obtained moreparticularly from a plant oil, such as palm oil or sunflower oil. Whenthe compound contains several acyl groups, these groups may be identicalor different.

These products are obtained, for example, by direct esterification oftriethanolamine, triisopropanolamine, an alkyldiethanolamine or analkyldiisopropanolamine, which are optionally oxyalkylenated, withC₁₀-C₃₀ fatty acids or with mixtures of C₁₀-C₃₀ fatty acids of plant oranimal origin, or by transesterification of the methyl esters thereof.This esterification is followed by quaternization using an alkylatingagent such as an alkyl (preferably methyl or ethyl) halide, a dialkyl(preferably methyl or ethyl) sulfate, methyl methanesulfonate, methylpara-toluenesulfonate, glycol chlorohydrin or glycerol chlorohydrin.Such compounds are, for example, sold under the names DEHYQUART by thecompany BASF, STEPANQUAT by the company Stepan, NOXAMIUM by the companyCeca or REWOQUAT WE 18 by the company Evonik.

The composition according to the invention may contain, for example, amixture of quaternary ammonium monoester, diester and triester saltswith a weight majority of diester salts.

Anionic Surfactants

The term “anionic surfactant” means a surfactant comprising, as ionic orionizable groups, only anionic groups. These anionic groups are chosenpreferably from the groups CO₂H, CO₂ ⁻, SO₃H, SO₃ ⁻, OSO₃H, OSO₃ ⁻O₂PO₂H, O₂PO₂H and O₂PO₂ ²⁻.

The anionic surfactant(s) that may be used may be alkyl sulfates, alkylether sulfates, alkylamido ether sulfates, alkylaryl polyether sulfates,monoglyceride sulfates, alkylsulfonates, alkylamide sulfonates,alkylarylsulfonates, alpha-olefin sulfonates, paraffin sulfonates,alkylsulfosuccinates, alkyl ether sulfosuccinates, alkylamidesulfosuccinates, alkyl sulfoacetates, acylsarcosinates, acylglutamates,alkylsulfosuccinamates, acylisethionates and N-acyltaurates, salts ofalkyl monoesters and polyglycoside-polycarboxylic acids, acyllactylates,salts of D-galactoside uronic acids, salts of alkyl ether carboxylicacids, salts of alkyl aryl ether carboxylic acids, and salts ofalkylamido ether carboxylic acids; or the non-salified forms of all ofthese compounds, the alkyl and acyl groups of all of these compoundscontaining from 6 to 24 carbon atoms and the aryl group denoting aphenyl group. Some of these compounds may be oxyethylenated and thenpreferably comprise from 1 to 50 ethylene oxide units.

The salts of C₆-C₂₄ alkyl monoesters of polyglycoside-polycarboxylicacids may be chosen from C₆-C₂₄ alkyl polyglycoside-citrates, C₆-C₂₄alkyl polyglycoside-tartrates and C₆-C₂₄ alkyl polyglycoside-sulfosuccinates.

When the anionic surfactant(s) are in salt form, they may be chosenespecially from alkali metal salts such as the sodium or potassium saltand preferably the sodium salt, ammonium salts, amine salts and inparticular amino alcohol salts, or alkaline-earth metal salts such asthe magnesium salt.

Examples of amino alcohol salts that may especially be mentioned includemonoethanolamine, diethanolamine and triethanolamine salts,monoisopropanolamine, diisopropanolamine or triisopropanolamine salts,2-amino-2-methyl-1-propanol salts, 2-amino-2-methyl-1,3-propanediolsalts and tris(hydroxymethyl)aminomethane salts. Alkali metal oralkaline-earth metal salts and in particular the sodium or magnesiumsalts may be used.

Use is also made of (C₆-C₂₄)alkyl sulfates, (C₆-C₂₄)alkyl ethersulfates, which are optionally ethoxylated, comprising from 2 to 50ethylene oxide units, and a mixture thereof, in particular in the formof alkali metal salts or alkaline-earth metal salts, ammonium salts oramino alcohol salts. More preferentially, the anionic surfactant(s) arechosen from (C₁₀-C₂₀)alkyl ether sulfates, and in particular sodiumlauryl ether sulfate.

Amphoteric Surfactants

Amphoteric surfactants useful in the cosmetic compositions disclosedherein may be chosen from betaines, sultaines, amphoacetates,amphoproprionates, and a mixture thereof. More typically, betaines andamphoproprionates are used, and most typically betaines. Betaines whichcan be used in the current compositions include those having theformulas below:

wherein

R¹⁰ is an alkyl group having 8-18 carbon atoms; and

n is an integer from 1 to 3.

Particularly useful betaines include, for example, coco betaine,cocoamidopropyl betaine, lauryl betaine, laurylhydroxy sulfobetaine,lauryldimethyl betaine, cocoamidopropyl hydroxysultaine, behenylbetaine, capryl/capramidopropyl betaine, lauryl hydroxysultaine, stearylbetaine, and a mixture thereof. Typically, the at least one betainecompound is selected from the group consisting of coco betaine,cocoamidopropyl betaine, behenyl betaine, capryl/capramidopropylbetaine, lauryl betaine, and a mixture thereof, and more typically cocobetaine and/or cocoamidopropyl betaine.

Hydroxyl sultaines useful in the compositions of the invention includethe following

wherein

R is an alkyl group having 8-18 carbon atoms.

Useful alkylamphoacetates include those having the formula

wherein

R is an alkyl group having 8-18 carbon atoms.

useful alkyl amphodiacetates include those having the formula

wherein

R is an alkyl group having 8-18 carbon atoms.

The amphoteric surfactants of the present disclosure may be optionallyquaternized secondary or tertiary aliphatic amine derivatives, in whichthe aliphatic group is a linear or branched chain comprising from 8 to22 carbon atoms, said amine derivatives containing at least one anionicgroup, for instance a carboxylate, sulfonate, sulfate, phosphate orphosphonate group.

Mention may be made in particular of (C₈-C₂₀)alkylbetaines,(C₈-C₂₀)alkylamido (C₁-C₆)alkylbetaines, sulfobetaines,(C₈-C₂₀)alkylsulfobetaines, (C₈-C₂₀)alkylamido(C₁-C₆)alkylsulfobetaines,(C₈-C₂₀)alkylamphoacetate, (C₈-C₂₀)alkylamphodiacetate, and a mixturethereof.

Among the optionally quaternized secondary or tertiary aliphatic aminederivatives that may be used, mention may also be made of the productsof respective structures (A1) and (A2) below:

Ra—CON(Z)CH₂—(CH₂)m-N+(Rb)(Rc)(CH₂COO—)  (A1)

in which:

Ra represents a C₁₀-C₃₀ alkyl or alkenyl group derived from an acidRa—COOH preferably present in hydrolysed coconut oil, a heptyl group, anonyl group or an undecyl group,

Rb represents a β-hydroxyethyl group,

Rc represents a carboxymethyl group;

m is equal to 0, 1 or 2,

Z represents a hydrogen atom or a hydroxyethyl or carboxymethyl group;

Ra′—CON(Z)CH₂—(CH₂)m′-N(B)(B′)  (A2)

in which:

B represents —CH₂CH₂OX′, with X′ representing —CH₂—COOH, CH₂—COOZ′,CH₂CH₂—COOH, —CH₂CH₂—COOZ′, or a hydrogen atom,

B′ represents —(CH₂)z-Y′, with z=1 or 2, and Y′ representing COOH,COOZ′, CH₂—CHOH—SO₃H or —CH₂—CHOH—SO₃Z′,

m′ is equal to 0, 1 or 2,

Z represents a hydrogen atom or a hydroxyethyl or carboxymethyl group,

Z′ represents an ion resulting from an alkali or alkaline-earth metal,such as sodium, potassium or magnesium; an ammonium ion; or an ionresulting from an organic amine and in particular from an amino alcohol,such as monoethanolamine, diethanolamine and triethanolamine,monoisopropanolamine, diisopropa-nolamine or triisopropanolamine,2-amino-2-methyl-1-propanol, 2-amino-2-methyl-1,3-propanediol andtris(hydroxymethyl)aminomethane,

Ra′ represents a C₁₀-C₃₀ alkyl or alkenyl group of an acid Ra′COOHpreferably pre-sent in hydrolysed linseed oil or coconut oil, an alkylgroup, in particular a C₁₇ alkyl group, and its iso form, or anunsaturated C₁₇ group.

Among the compounds corresponding to formula (A2) in which X′ representsan hydrogen atom, mention may be made of compounds under the namessodium cocoamphoacetate, sodium lauroamphoacetate, sodiumcaproamphoacetate and sodium capryloamphoacetate.

Other compounds corresponding to formula (A2) are disodiumcocoamphodiacetate, disodium lauroamphodiacetate, disodiumcaproamphodiacetate, disodium capryloamphodiacetate, disodiumcocoamphodipropionate, disodium lauroamphodipropionate, disodiumcaproamphodipropionate, disodium capryloamphodipropionate,lauroamphodipropionic acid and cocoamphodipropionic acid.

Examples that may be mentioned include the cocoamphodiacetate sold bythe company Rhodia under the trade name Miranol® C2M Concentrate, thesodium cocoamphoacetate sold under the trade name Miranol Ultra C 32 andthe product sold by the company Chimex under the trade name CHIMEXANEHA.

Use may also be made of the compounds of formula (A3):

Ra″—NH—CH(Y″)—(CH₂)n-C(O)—NH—(CH₂)n′—N(Rd)(Re)  (A3)

in which:

-   -   Ra″ represents a C10-C30 alkyl or alkenyl group of an acid        Ra“—C(O)OH preferably present in hydrolysed linseed oil or        coconut oil;    -   Y″ represents the group —C(O)OH, —C(O)OZ″, —CH₂—CH(OH)—SO₃H or        the group CH₂—CH(OH)—SO₃—Z″, with Z″ representing a cationic        counterion resulting from an alkali metal or alkaline-earth        metal, such as sodium, an ammonium ion or an ion resulting from        an organic amine;    -   Rd and Re represent, independently of each other, a C₁-C₄ alkyl        or hydroxyalkyl radical; and    -   n and n′ denote, independently of each other, an integer ranging        from 1 to 3.

Among the compounds corresponding to formula (A3), mention may inparticular be made of the compound under the name sodiumdiethylaminopropylcocoaspartamide.

Preferably, the amphoteric surfactants are chosen from(C₈-C₂₀)alkylbetaines, (C₈-C₂₀)alkylamido(C₁-C₆)alkylbetaines,(C₈-C₂₀)alkylamphoacetates and (C₈-C₂₀)alkylamphodiacetates, and amixture thereof.

In some cases, the at least one amphoteric surfactant is chosen from(C₈-C₂₀)alkyl betaines, (C₈-C₂₀)alkylamido (C₁-C₆)alkylbetaines,(C₈-C₂₀)alkylamphoacetate, (C₈-C₂₀)alkylamphodiacetate, and their salts,and a mixture thereof. In some cases, the at least one amphotericsurfactant is selected from coco-betaine, cocamidopropylbetaine, sodiumcocoamphoacetate, disodium cocoamphodiacetate, and a mixture thereof.

Non-Ionic Surfactants

Nonionic surfactants are compounds well known in themselves (see, e.g.,in this regard, “Handbook of Surfactants” by M. R. Porter, Blackie & Sonpublishers (Glasgow and London), 1991, pp. 116-178), which isincorporated herein by reference in its entirety.

The nonionic surfactant can be, for example, selected from alcohols,alpha-diols, alkylphenols and esters of fatty acids, these compoundsbeing ethoxylated, propoxylated or glycerolated and having at least onefatty chain comprising, for example, from 8 to 18 carbon atoms, it beingpossible for the number of ethylene oxide or propylene oxide groups torange from 2 to 50, and for the number of glycerol groups to range from1 to 30. Maltose derivatives may also be mentioned. Non-limiting mentionmay also be made of copolymers of ethylene oxide and/or of propyleneoxide; condensates of ethylene oxide and/or of propylene oxide withfatty alcohols; polyethoxylated fatty amides comprising, for example,from 2 to 30 mol of ethylene oxide; polyglycerolated fatty amidescomprising, for example, from 1.5 to 5 glycerol groups, such as from 1.5to 4; ethoxylated fatty acid esters of sorbitan comprising from 2 to 30mol of ethylene oxide; ethoxylated oils from plant origin; fatty acidesters of sucrose; fatty acid esters of polyethylene glycol;polyethoxylated fatty acid mono or diesters of glycerol(C₆-C₂₄)alkylpolyglycosides; N—(C₆-C₂₄)alkylglucamine derivatives, amineoxides such as (C₁₀-C₁₄)alkylamine oxides orN—(C₁₀-C₁₄)acylaminopropylmorpholine oxides; and a mixture thereof.

The nonionic surfactants may preferably be chosen frompolyoxyalkylenated or polyglycerolated nonionic surfactants. Theoxyalkylene units are more particularly oxyethylene or oxypropyleneunits, or a combination thereof, and are preferably oxyethylene units.

Examples of oxyalkylenated nonionic surfactants that may be mentionedinclude: oxyalkylenated (C₈-C₂₄)alkylphenols, saturated or unsaturated,linear or branched, oxyalkylenated C₈-C₃₀ alcohols, saturated orunsaturated, linear or branched, oxyalkylenated C₈-C₃₀ amides, esters ofsaturated or unsaturated, linear or branched, C₈-C₃₀ acids and ofpolyethylene glycols, polyoxyalkylenated esters of saturated orunsaturated, linear or branched, C₈-C₃₀ acids and of sorbitol, saturatedor unsaturated, oxyalkylenated plant oils, condensates of ethylene oxideand/or of propylene oxide, inter alia, alone or as mixtures.

The surfactants preferably contain a number of moles of ethylene oxideand/or of propylene oxide of between 2 and 100 and most preferablybetween 2 and 50. Advantageously, the nonionic surfactants do notcomprise any oxypropylene units.

In accordance with one preferred embodiment of the invention, theoxyalkylenated nonionic surfactants are chosen from oxyethylenatedC₈-C₃₀ alcohols.

Examples of ethoxylated fatty alcohols (or C₈-C₃₀ alcohols) that may bementioned include the adducts of ethylene oxide with lauryl alcohol,especially those containing from 9 to 50 oxyethylene groups and moreparticularly those containing from 10 to 25 oxyethylene groups(Laureth-10 to Laureth-25); the adducts of ethylene oxide with behenylalcohol, especially those containing from 9 to 50 oxyethylene groups(Beheneth-9 to Beheneth-50); the adducts of ethylene oxide with cetearylalcohol (mixture of cetyl alcohol and stearyl alcohol), especially thosecontaining from 10 to 30 oxyethylene groups (Ceteareth-10 toCeteareth-30); the adducts of ethylene oxide with cetyl alcohol,especially those containing from 10 to 30 oxyethylene groups (Ceteth-10to Ceteth-30); the adducts of ethylene oxide with stearyl alcohol,especially those containing from 10 to 30 oxyethylene groups(Steareth-10 to Steareth-30); the adducts of ethylene oxide withisostearyl alcohol, especially those containing from 10 to 50oxyethylene groups (Isosteareth-10 to Isosteareth-50); and a mixturethereof.

As examples of polyglycerolated nonionic surfactants, polyglycerolatedC₈-C₄₀ alcohols are preferably used.

In particular, the polyglycerolated C₈-C₄₀ alcohols correspond to thefollowing formula:

RO—[CH₂—CH(CH₂OH)—O]_(m)—H or RO—[CH(CH₂OH)—CH₂O]_(m)—H

in which R represents a linear or branched C₈-C₄₀ and preferably C₈-C₃₀alkyl or alkenyl radical, and m represents a number ranging from 1 to 30and preferably from 1.5 to 10.

As examples of compounds that are suitable in the context of theinvention, mention may be made of lauryl alcohol containing 4 mol ofglycerol (INCI name: Polyglyceryl-4 Lauryl Ether), lauryl alcoholcontaining 1.5 mol of glycerol, Oleyl alcohol containing 4 mol ofglycerol (INCI name: Polyglyceryl-4 Oleyl Ether), Oleyl alcoholcontaining 2 mol of glycerol (INCI name: Polyglyceryl-2 Oleyl Ether),cetearyl alcohol containing 2 mol of glycerol, cetearyl alcoholcontaining 6 mol of glycerol, oleocetyl alcohol containing 6 mol ofglycerol, and octadecanol containing 6 mol of glycerol.

The alcohol may represent a mixture of alcohols in the same way that thevalue of m represents a statistical value, which means that, in acommercial product, several species of polyglycerolated fatty alcoholmay coexist in the form of a mixture.

According to one of the embodiments according to the present invention,the nonionic surfactant may be selected from esters of polyols withfatty acids with a saturated or unsaturated chain containing for examplefrom 8 to 24 carbon atoms, preferably 12 to 22 carbon atoms, andalkoxylated derivatives thereof, preferably with a number ofalkyleneoxide of from 10 to 200, and more preferably from 10 to 100,such as glyceryl esters of a C₈-C₂₄, preferably C₁₂-C₂₂, fatty acid oracids and alkoxylated derivatives thereof, preferably with a number ofalkyleneoxide of from 10 to 200, and more preferably from 10 to 100;polyethylene glycol esters of a C₈-C₂₄, preferably C₁₂-C₂₂, fatty acidor acids and alkoxylated derivatives thereof, preferably with a numberof alkyleneoxide of from 10 to 200, and more preferably from 10 to 100;sorbitol esters of a C₈-C₂₄, preferably C₁₂-C₂₂, fatty acid or acids andalkoxylated derivatives thereof, preferably with a number ofalkyleneoxide of from 10 to 200, and more preferably from 10 to 100;sugar (sucrose, glucose, alkylglycose) esters of a C₈-C₂₄, preferablyC₁₂-C₂₂, fatty acid or acids and alkoxylated derivatives thereof,preferably with a number of alkyleneoxide of from 10 to 200, and morepreferably from 10 to 100; ethers of fatty alcohols; ethers of sugar anda C₈-C₂₄, preferably C₁₂-C₂₂, fatty alcohol or alcohols; and a mixturethereof.

Examples of ethoxylated fatty esters that may be mentioned include theadducts of ethylene oxide with esters of lauric acid, palmitic acid,stearic acid or behenic acid, and a mixture thereof, especially thosecontaining from 9 to 100 oxyethylene groups, such as PEG-9 to PEG-50laurate; PEG-9 to PEG-50 palmitate; PEG-9 to PEG-50 stearate; PEG-9 toPEG-50 palmitostearate; PEG-9 to PEG-50 behenate; polyethylene glycol100 EO monostearate; and a mixture thereof.

As glyceryl esters of fatty acids, glyceryl stearate (glyceryl mono-,di- and/or tristearate) (glyceryl stearate) or glyceryl ricinoleate anda mixture thereof can in particular be cited.

As glyceryl esters of C₈-C₂₄ alkoxylated fatty acids, polyethoxylatedglyceryl stearate (glyceryl mono-, di- and/or tristearate) such asPEG-20 glyceryl stearate can for example be cited.

Mixtures of these surfactants, such as for example the productcontaining glyceryl stearate and PEG-100 stearate, marketed under thename ARLACEL 165 by Croda, and a product containing glyceryl stearate(glyceryl mono- and distearate) and potassium stearate, can also beused.

The sorbitol esters of C₈-C₂₄ fatty acids and alkoxylated derivativesthereof can be selected from sorbitan palmitate, sorbitan trioleate andesters of fatty acids and alkoxylated sorbitan containing for examplefrom 20 to 100 EO, such as for example polyethylene sorbitan trioleate(polysorbate 85) or the compounds marketed under the trade names Tween20 or Tween 60 by Croda.

As esters of fatty acids and glucose or alkylglucose, in particularglucose palmitate, alkylglucose sesquistearates such as methylglucosesesquistearate, alkylglucose palmitates such as methylglucose orethylglucose palmitate, methylglucoside fatty esters and morespecifically the diester of methylglucoside and oleic acid (Methylglucose dioleate), the mixed ester of methylglucoside and the mixtureoleic acid/hydroxystearic acid (Methyl glucosedioleate/hydroxystearate), the ester of methylglucoside and isostearicacid (Methyl glucose isostearate), the ester of methylglucoside andlauric acid (Methyl glucose laurate), the mixture of monoester anddiester of methylglucoside and isostearic acid (Methyl glucosesesqui-isostearate), the mixture of monoester and diester ofmethylglucoside and stearic acid (Methyl glucose sesquistearate) and inparticular the product marketed under the name Glucate SS by Lubrizol,and a mixture thereof can be cited.

As ethoxylated ethers of fatty acids and glucose or alkylglucose,ethoxylated ethers of fatty acids and methylglucose, and in particularthe polyethylene glycol ether of the diester of methylglucose andstearic acid with about 20 moles of ethylene oxide (PEG-20 methylglucose distearate) such as the product marketed under the name GLUCAME-20 DISTEARATE by Lubrizol, the polyethylene glycol ether of themixture of monoester and diester of methyl-glucose and stearic acid withabout 20 moles of ethylene oxide (PEG-20 methyl glucose sesquistearate)and in particular the product marketed under the name GLUCAMATE SSE-20by Lubrizol, and a mixture thereof, can for example be cited.

As sucrose esters, saccharose palmito-stearate, saccharose stearate andsaccharose monolaurate can for example be cited.

As sugar ethers, alkylpolyglucosides can be used, and for exampledecylglucoside such as the product marketed under the name MYDOL 10 byKao Chemicals, the product marketed under the name PLATAREN 2000 byBASF, and the product marketed under the name ORAMIX NS 10 by Seppic,caprylyl/capryl glucoside such as the product marketed under the nameORAMIX CG 110 by Seppic or under the name LUTENSOL GD 70 by BASF,laurylglucoside such as the products marketed under the names PLANTAREN1200 N and PLANTACARE 1200 by BASF, coco-glucoside such as the productmarketed under the name PLANTACARE 818/UP by BASF, cetostearyl glucosidepossibly mixed with cetostearyl alcohol, marketed for example under thename MONTANOV 68 by Seppic, under the name TEGO-CARE CG90 by Evonik,arachidyl glucoside, for example in the form of the mixture of arachidyland behenyl alcohols and arachidyl glucoside marketed under the nameMONTANOV 202 by Seppic, cocoylethylglucoside, for example in the form ofthe mixture (35/65) with cetyl and stearyl alcohols, marketed under thename MONTANOV 82 by Seppic, and a mixture thereof can in particular becited.

Mixtures of glycerides of alkoxylated plant oils such as mixtures ofethoxylated (200 EO) palm and copra (7 EO) glycerides can also be cited.

It is preferable that the nonionic surfactant be selected from the groupconsisting of PEG-7 glyceryl cocoate, PEG-20 methylglucosidesesquistearate, PEG-20 glyceryl tri-isostearate, PG-5 dioleate, PG-4diisostearate, PG-10 isostearate, PEG-8 isostearate, and PEG-60hydrogenated castor oil.

Mixtures of these oxyethylenated derivatives of fatty alcohols and offatty esters may also be used.

Preferably, the nonionic surfactant may be a nonionic surfactant with anHLB of 18.0 or less, such as from 4.0 to 18.0, more preferably from 6.0to 15.0 and furthermore preferably from 9.0 to 13.0. The HLB is theratio between the hydrophilic part and the lipophilic part in themolecule. This term HLB is well known to those skilled in the art and isdescribed in “The HLB system. A time-saving guide to emulsifierselection” (published by ICI Americas Inc., 1984).

In some case, the nonionic surfactant is a fatty alkanolamide.Non-limiting examples of fatty alkanolamides that may be used includecocamide MEA, cocamide DEA, soyamide DEA, lauramide DEA, oleamide MIPA,stearamide MEA, myristamide DEA, stearamide DEA, oleylamide DEA,tallowamide DEA lauramide MIPA, tallowamide MEA, isostearamide DEA,isostearamide MEA, and a mixture thereof.

Silicones

Exemplary silicones include, without limitation, cyclic silicones, suchas those having 3 to 6, or 3 to 4 or 3 to 5, (or any of 3, 4, 5, or 6)Si-O groups in the cyclic backbone chain (e.g., siloxanes). In somecases, the cyclic silicone is a volatile silicone. In some cases, thecyclic silicone is a low viscosity silicone. Exemplary cyclic siliconesinclude, without limitation, cyclomethicone, cyclotetrasiloxane,cyclopentasiloxane (e.g., Cyclomethicone 5-NF), cyclohexasiloxane and amixture of cyclohexasiloxane and cyclopenasiloxane (e.g., DOW CORNING246 Fluid (d6+d5)). Other non-limiting examples of silicones aresilicones having side groups or side chains. In some cases, the sidegroups are hydrophobic. In some cases, the side groups are straightchained, while in other embodiments the side groups are branched.Exemplary side chains include those having 1 to 6, or 2 to 6, or 3 to 6or 3 to 6 or 5 to 6 carbons or heteroatoms (e.g., O, S, or N) (or anycombination thereof). Exemplary linear side chains include, withoutlimitation, methyl, ethyl, propyl, butyl, pentyl, and hexyl. Exemplarybranched side chains include, without limitation, isopropyl, isobutyl,and tert-butyl. In one nonlimiting embodiment, the branched side chainis —O—Si(CH₃)₃. Nonlimiting examples of silicones having branched sidechains are stearyl dimethicone and phyenyltrimethicone, cetyldimethicone, caprylyl methicone, PEG/PPG 18/18 dimethicone thestructures of which are as follows:

In the above formulas m, n, x, and y may independently be integers of 1to 100, 1 to 80, 1 to 60, 1 to 50, 1 to 40, 1 to 30, 1 to 20, or 1 to10. In some cases, the side chains are cyclic. Cyclic side chainsinclude aliphatic side chains and aromatic side chains. A nonlimitingexample of a cyclic side chain is phenyl.

With regard to silicones having hydrophilic or polar groups, asdescribed previously, silicones that are repulsive with regard to thehydrophobic chains of the oil are thought to produce more stable foamsbecause they do not inhibit the hydrophobic-hydrophobic interactions ofthe oil. Exemplary hydrophilic or polar groups include oxygen-containinggroups, such as carbonyl groups, hydroxy groups, ether, ester,carboxylic groups, which replace one or more methyl groups. Thehydrophilic/polar groups are present alternatively in the main chain ofthe silicone or in a side chain. Nonlimiting examples of a siliconehaving a hydrophilic group are PEG/PPG 18/18 dimethicone anddimethiconol, the structures of which are:

X, y, m, and n are as defined above, and R is a C₁ to C₁₀ alkyl.

Another type of specific non limiting volatile silicone is a volatileshort chain linear alkylmethylsilicone fluid. The volatile short chainlinear alkylmethylsilicone fluid has the formula:

In the above formula, the integer represented by n has a value of fiveto twelve. Preferably, n has a value of five to eight. Compoundsinclude, for example, 3-hexyl-1,1,1,3,5,5,5,-heptamethyltrisiloxane and3-octyl-1,1,1,3,5,5,5-heptamethyltrisiloxane.

Yet another type of volatile silicone in accordance with the presentinvention is a volatile short chain linear phenylmethylsilicone fluid.The volatile short chain linear phenylmethylsilicone fluid has theformula:

This compound is 3-phenyl-1,1,1,3,4,4,4-heptamethyltrisiloxane. Furthervolatile silicone fluids useful in the compositions described hereininclude, without limitation, are decamethylcyclopentasiloxane (DMCPS)which has a molecular weight of about 370, a refractive index of 1.40,and the formula [(Me₂)SiO]₅; the compound3-hexyl-1,1,1,3,5,5,5-heptamethyltrisiloxane (HHMTS) which has amolecular weight of about 306, and a refractive index of 1.41; and thecompound 3-phenyl-1,1,1,3,5,5,5-heptamethyltrisiloxane (PHMTS) which hasa molecular weight of about 298 and a refractive index of 1.45.

As amino silicone that may be used in the scope of the instantdisclosure, the following can be cited:

a) polysiloxanes corresponding to formula (A):

in which x′ and y′ are integers such that the weight-average molecularweight (Mw) is comprised between about 5000 and 500 000

-   -   b) amino silicones correspondingto formula (B):

R′_(a)G_(3-a)-Si(OSiG₂)n-(OSiGbR′_(2-b))m-O-SiG_(3-a)-R′_(a)   (B)

in which:

-   -   G, which may be identical or different, designate a hydrogen        atom, or a phenyl, OH or C₁-C₈ alkyl group, for example methyl,        or C₁-C₈ alkoxy, for example methoxy,    -   a, which may be identical or different, denote the number 0 or        an integer from 1 to 3, in particular 0;    -   b denotes 0 or 1, and in particular 1;    -   m and n are numbers such that the sum (n+m) ranges from 1 to        2000 and in particular from 50 to 150, it being possible for n        to denote a number from 0 to 1999 and in particular from 49 to        149, and for m to denote a number from 1 to 2000 and in        particular from 1 to 10;    -   R′, which may be identical or different, denote a monovalent        radical having formula —CqH₂qL in which q is a number ranging        from 2 to 8 and L is an optionally quaternized amino group        chosen from the following groups:    -   —NR″-Q-N(R″)₂    -   —N(R″)₂    -   —N+(R″)₃A-    -   N+H(R″)₂A-    -   N+H₂(R″)A-    -   N(R″)-Q-N+R″H₂A-    -   —NR″-Q-N+(R″)₂HA-    -   —NR″-Q-N+(R″)₃A-,

in which R″, which may be identical or different, denote hydrogen,phenyl, benzyl, or a saturated monovalent hydrocarbon-based radical, forexample a C₁-C₂₀ alkyl radical; Q denotes a linear or branched CrH_(2r)group, r being an integer ranging from 2 to 6, preferably from 2 to 4;and A- represents a cosmetically acceptable ion, in particular a halidesuch as fluoride, chloride, bromide or iodide.

A group of amino silicones corresponding to this definition (B) isrepresented by the silicones called “trimethylsilylamodimethicone”having formula (C):

in which n and m have the meanings given above, in formula B.

Another group of amino silicones corresponding to this definition isrepresented by silicones having the following formulae (D) or (E):

in which:

-   -   m and n are numbers such that the sum (n+m) can range from 1 to        1000, in particular from 50 to 250 and more particularly from        100 to 200, it being possible for n to denote a number from 0 to        999 and in particular from 49 to 249, and more particularly from        125 to 175, and for m to denote a number from 1 to 1000 and in        particular from 1 to 10, and more particularly from 1 to 5;    -   R₁, R₂, R₃, which may be identical or different, represent a        hydroxy or C₁-C₄ alkoxy radical, where at least one of the        radicals R₁ to R₃ denotes an alkoxy radical.

The alkoxy radical is preferably a methoxy radical.

The hydroxy/alkoxy mole ratio ranges preferably from 0.2:1 to 0.4:1 andpreferably from 0.25:1 to 0.35:1 and more particularly equals 0.3:1.

The weight-average molecular weight (Mw) of the silicone rangespreferably from 2000 to 1 000 000, more particularly from 3500 to 200000.

in which:

-   -   p and q are numbers such that the sum (p+q) ranges from 1 to        1000, particularly from 50 to 350, and more particularly from        150 to 250; it being possible for p to denote a number from 0 to        999 and in particular from 49 to 349, and more particularly from        159 to 239 and for q to denote a number from 1 to 1000, in        particular from 1 to 10, and more particularly from 1 to 5;    -   R₁, R₂, which are different, represent a hydroxy or C₁-C₄ alkoxy        radical, where at least one of the radicals R₁ or R₂ denotes an        alkoxy radical.

The alkoxy radical is preferably a methoxy radical.

The hydroxy/alkoxy mole ratio ranges generally from 1:0.8 to 1:1.1 andpreferably from 1:0.9 to 1:1 and more particularly equals 1:0.95.

The weight-average molecular weight (Mw) of the silicone rangespreferably from 2000 to 200 000, even more particularly 5000 to 100 000and more particularly from 10 000 to 50 000.

Commercial products corresponding to these silicones having structure(D) or (E) may include in their composition one or more other aminosilicones whose structure is different than formulae (D) or (E).

A product containing amino silicones having structure (D) is sold byWacker under the name Belsil® ADM 652.

A product containing amino silicones having structure (E) is sold byWacker under the name Fluid WR 1300®.

When these amino silicones are used, one particularly advantageousembodiment consists in using them in the form of an oil-in-wateremulsion. The oil-in-water emulsion may comprise one or moresurfactants. The surfactants may be of any nature but are preferablycationic and/or nonionic. The number-average size of the siliconeparticles in the emulsion generally ranges from 3 nm to 500 nanometres.Preferably, in particular as amino silicones having formula (E),microemulsions are used whose average particle size ranges from 5 nm to60 nanometres (limits included) and more preferably from 10 nm to 50nanometres (limits included). Accordingly, according to the inventionthe microemulsions of amino silicone having formula (E) sold as FinishCT 96 E® or SLM 28020® by Wacker can be used.

Another group of amino silicones corresponding to this definition isrepresented by the following formula (F):

in which:

-   -   m and n are numbers such that the sum (n+m) ranges from 1 to        2000 and in particular from 50 to 150, it being possible for n        to denote a number from 0 to 1999 and in particular from 49 to        149, and form to denote a number from 1 to 2000 and in        particular from 1 to 10;    -   A denotes a linear or branched alkylene radical containing from        4 to 8 carbon atoms and preferably 4 carbon atoms. This radical        is preferably linear.

The weight-average molecular weight (Mw) of these amino silicones rangespreferably from 2000 to 1 000 000 and even more particularly from 3500to 200 000.

A preferred silicone of formula (F) is amodimethicone (INCI name) soldunder the tradename XIAMETER® MEM-8299 Cationic Emulsion by Dow Corning.

Another group of amino silicones corresponding to this definition isrepresented by the following formula (G):

in which:

-   -   m and n are numbers such that the sum (n+m) ranges from 1 to        2000 and in particular from 50 to 150, it being possible for n        to denote a number from 0 to 1999 and in particular from 49 to        149, and form to denote a number from 1 to 2000 and in        particular from 1 to 10;    -   A denotes a linear or branched alkylene radical containing from        4 to 8 carbon atoms and preferably 4 carbon atoms. This radical        is preferably branched.

The weight-average molecular weight (Mw) of these amino silicones rangespreferably from 500 to 1 000 000 and even more particularly from 1000 to200 000.

A silicone having this formula is for example DC2-8566 Amino Fluid byDow Corning.

c) amino silicones corresponding to formula (H):

in which:

-   -   R₅ represents a monovalent hydrocarbon-based radical containing        from 1 to 18 carbon atoms, and in particular a C₁-C₁₈ alkyl or        C₂-C₁₈ alkenyl radical, for example methyl;    -   R₆ represents a divalent hydrocarbon-based radical, in        particular a C₁-C₁₈ alkylene radical or a divalent C₁-C₁₈, for        example C₁-C₈, alkylenoxy radical linked to the Si via an SiC        bond;    -   Q- is an anion such as a halide ion, in particular chloride, or        an organic acid salt (for example acetate);    -   r represents a mean statistical value from 2 to 20 and in        particular from 2 to 8;    -   s represents a mean statistical value from 20 to 200 and in        particular from 20 to 50.

Such amino silicones are described more particularly in patent U.S. Pat.No. 4,185,087.

d) quaternary ammonium silicones having formula (I):

in which:

-   -   R₇, which may be identical or different, represent a monovalent        hydrocarbon-based radical containing from 1 to 18 carbon atoms,        and in particular a C₁-C₁₈ alkyl radical, a C₂-C₁₈ alkenyl        radical or a ring containing 5 or 6 carbon atoms, for example        methyl;    -   R₆ represents a divalent hydrocarbon-based radical, in        particular a C₁-C₁₈ alkylene radical or a divalent C₁-C₁₈, for        example C₁-C₈, alkylenoxy radical linked to the Si via an SiC        bond;    -   R₈, which may be identical or different, represent a hydrogen        atom, a monovalent hydrocarbon-based radical containing from 1        to 18 carbon atoms, and in particular a C₁-C₁₈ alkyl radical, a        C₂-C₁₈ alkenyl radical or a —R₆—NHCOR₇ radical;    -   X− is an anion such as a halide ion, in particular chloride, or        an organic acid salt (for example acetate);    -   r represents a mean statistical value from 2 to 200 and in        particular from 5 to 100;

These silicones are described, for example, in patent application EP-A 0530 974.

e) amino silicones having formula (J):

in which:

-   -   R₁, R₂, R₃ and R₄, which may be identical or different, denote a        C₁-C₄ alkyl radical or a phenyl group;

R₅ denotes a C₁-C₄ alkyl radical or a hydroxyl group;

-   -   n is an integer ranging from 1 to 5;    -   m is an integer ranging from 1 to 5;

and in which x is chosen such that the amine number is between 0.01 and1 meq/g;

f) multiblock polyoxyalkylenated amino silicones, of type (AB)n, A beinga polysiloxane block and B being a polyoxyalkylenated block containingat least one amine group.

Said silicones are preferably constituted of repeating units having thefollowing general formulae:

[—(SiMe₂O)_(x)SiMe₂-R—N(R″)—R—O(C₂H₄O)_(a)(C₃H₆O)_(b)—R′—N(H)—R—  ]

or alternatively

[—(SiMe₂O)_(x)SiMe₂-R—N(R″)—R′-O(C₂H₄O)_(a)(C₃H₆O)_(b)—]

in which:

-   -   a is an integer greater than or equal to 1, preferably ranging        from 5 to 200, more particularly ranging from 10 to 100;    -   b is an integer comprised between 0 and 200, preferably ranging        from 4 to 100, more particularly between from 5 and 30;    -   x is an integer ranging from 1 to 10 000, more particularly from        10 to 5000;    -   R″ is a hydrogen atom or a methyl;    -   R, which may be identical or different, represent a divalent        linear or branched C₂-C₁₂ hydrocarbon-based radical, optionally        including one or more heteroatoms such as oxygen; preferably, R        denotes an ethylene radical, a linear or branched propylene        radical, a linear or branched butylene radical, or a        —CH₂CH₂CH₂OCH(OH)CH₂— radical; preferentially R denotes a        —CH₂CH₂CH₂OCH(OH)CH₂— radical;    -   R′, which may be identical or different, represent a divalent        linear or branched C₂-C₁₂ hydrocarbon-based radical, optionally        including one or more heteroatoms such as oxygen; preferably, R′        denotes an ethylene radical, a linear or branched propylene        radical, a linear or branched butylene radical, or a        —CH₂CH₂CH₂OCH(OH)CH₂— radical; preferentially R′ denotes        —CH(CH₃)—CH₂—.

The siloxane blocks preferably represent between 50 and 95 mol % of thetotal weight of the silicone, more particularly from 70 to 85 mol %.

The amine content is preferably between 0.02 and 0.5 meq/g of copolymerin a 30% solution in dipropylene glycol, more particularly between 0.05and 0.2.

The weight-average molecular weight (Mw) of the silicone is preferablycomprised between 5000 and 1 000 000, more particularly between 10 000and 200 000.

Mention may be made especially of the silicones sold under the namesSilsoft™ A-843 or Silsoft™ A+ by Momentive.

g) the alkylamino silicones corresponding to formula (K) below:

in which:

-   -   x and y are numbers ranging from 1 to 5000; preferably, x ranges        from 10 to 2000 and especially from 100 to 1000; preferably, y        ranges from 1 to 100;    -   R₁ and R₂, which may be identical or different, preferably        identical, are linear or branched, saturated or unsaturated        alkyl radicals, comprising 6 to 30 carbon atoms, preferably 8 to        24 carbon atoms and especially 12 to 20 carbon atoms;    -   A denotes a linear or branched alkylene radical containing from        2 to 8 carbon atoms,

Preferably, A comprises 3 to 6 carbon atoms, especially 4 carbon atoms;preferably, A is branched. Mention may be made especially of thefollowing divalent radicals: —CH₂CH₂CH₂ and —CH₂CH(CH₃)CH₂—.

Preferably, R₁ and R₂, which may be identical or different, aresaturated linear alkyl radicals comprising 6 to 30 carbon atoms,preferably 8 to 24 carbon atoms and especially 12 to 20 carbon atoms;mention may be made in particular of dodecyl, tetradecyl, pentadecyl,hexadecyl, heptadecyl, octadecyl, nonadecyl and eicosyl radicals; andpreferentially, R₁ and R₂, which may be identical or different, arechosen from hexadecyl (cetyl) and octadecyl (stearyl) radicals.

Preferentially, the silicone is of formula (K) with:

-   -   x ranging from 10 to 2000 and especially from 100 to 1000;    -   y ranging from 1 to 100;    -   A comprising 3 to 6 carbon atoms and especially 4 carbon atoms;        preferably, A is branched; and more particularly A is chosen        from the following divalent radicals: CH₂CH₂CH₂ and        —CH₂CH(CH₃)CH₂—; and    -   R₁ and R₂, which may be identical or different, being linear,        saturated alkyl radicals comprising 6 to 30 carbon atoms,        preferably 8 to 24 carbon atoms and especially 12 to 20 carbon        atoms; chosen in particular from dodecyl, tetradecyl,        pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl and        eicosyl radicals; preferentially, R₁ and R₂, which may be        identical or different, being chosen from hexadecyl (cetyl) and        octadecyl (stearyl) radicals.

A preferred silicone of formula (K) is bis-cetearylamodimethicone (INCIname).

Mention may be made especially of the silicone sold under the nameSilsoft™ AX by Momentive.

Preferably, the amino silicones according to the invention are chosenfrom the amino silicones of formula (F). A preferred silicone of formula(F) is amodimethicone (INCI name) sold under the tradename XIAMETER®MEM-8299 Cationic Emulsion by Dow Corning.

Implementation of the present disclosure is provided by way of thefollowing examples. The examples serve to illustrate the technologywithout being limiting in nature.

Example 1 Sulfate Shampoos

INCI US #1 #2 #3 #4 #5 #6 Active TAURINE 3 3 3 3 3 3 Active CITRIC ACID3 3 3 3 Active TRIETHANOLAMINE 5 Anionic SODIUM LAURETH 11.2 15 15 15 1511.2 Surfactant(s) SULFATE AND/OR SODIUM LAURYL SULFATE Water-SolubleHEXYLENE GLYCOL 0.5 0.5 Carrier Amphoteric COCAMIDOPROPYL 2.4 2.4Surfactant BETAINE Fatty Compound GLYCOL DISTEARATE 1.5 1.5 1.5 1.5Silicone DIMETHICONE 0.8 0.8 0.8 0.8 Cationic Polymer GUARHYDROXYPROPYL- 0.5 0.2 0.2 0.2 0.2 0.5 TRIMONIUM CHLORIDE AND/ORPOLYQUATERNIUM-10 Preservatives OPTIONAL COMPONENT 0-2 0-2 0-2 0-2 0-20-2 Salt(s) OPTIONAL COMPONENT 0-2 0-2 0-2 0-2 0-2 0-2 Nonionic OPTIONALCOMPONENT 0-5 0-5 0-5 0-5 0-5 0-5 Surfactant(s) Thickener(s) OPTIONALCOMPONENT 0-2 0-2 0-2 0-2 0-2 0-2 pH Modifier(s) OPTIONAL COMPONENT 0-30-3 0-3 0-3 0-3 0-3 Fragrance(s) OPTIONAL COMPONENT 0-3 0-3 0-3 0-3 0-30-3 Water WATER Q.S. Q.S. Q.S. Q.S. Q.S. Q.S.

Example 2 Sulfate-Free Shampoo

INCI US #7 Active TAURINE 3 Active CITRIC ACID 3 Active PIROCTONEOLAMINE 0.1 Anionic SODIUM LAUROYL SARCOSINATE, 10.4 Surfactant(s)SODIUM LAURYL SULFOACETATE, DISODIUM LAURETH SULFOSUCCINATE, AND/ORSODIUM COCOYL ISETHIONATE Amphoteric COCO-BETAINE 4.5 SurfactantNonionic DECYL GLUCOSIDE AND/OR 1 Surfactant(s) TRIDECETH-6 AND/ORPPG-5- CETETH-20 Silicone AMODIMETHICONE 0.6 Cationic PolymerPOLYQUATERNIUM-10 0.6 Water-Soluble Carrier PROPYLENE GLYCOL 0.2 FattyCompound(s) GLYCOL DISTEARATE AND/OR 1.6 PEG-55 PROPYLENE GLYCOL OLEATEPreservative(s) OPTIONAL COMPONENT 0-2 Salt(s) OPTIONAL COMPONENT 0-2Thickener(s) OPTIONAL COMPONENT 0-2 pH Modifier(s) OPTIONAL COMPONENT0-3 Fragrance(s) OPTIONAL COMPONENT 0-3 Water WATER Q.S

Example 3 Anionic Surfactant-Free Conditioning Shampoos

INCI US #8 #9 Active TAURINE 3 3 Active CITRIC ACID 1.5 AmphotericSODIUM 5 5 Surfactant COCOAMPHOPROPIONATE Cationic BEHENTRIMONIUMCHLORIDE 3.2 3.2 Surfactant Water-Soluble CAPRYLYL GLYCOL, 1.8 1.8Solvent(s) GLYCERIN AND/OR ISOPROPYL ALCOHOL Thickener HYDROXYPROPYLSTARCH 3.5 3.5 PHOSPHATE Fatty Compound(s) CETEARYL ALCOHOL AND/OR 6.16.1 SOYBEAN OIL UV Filter ETHYLHEXYL 0-1 0-1 METHOXYCINNAMATEPreservative(s) OPTIONAL COMPONENT 0-2 0-2 pH Modifier(s) OPTIONALCOMPONENT 0-3 0-3 Fragrance(s) OPTIONAL COMPONENT 0-3 0-3 Water WATERQ.S Q.S.

Example 4 Conditioners

INCI US #10 #11 #12 #13 #14 #15 #16 Active TAURINE 3 3 3 3 3 3 3 ActiveCITRIC ACID 1.9 1.9 1.9 0.1 3 Active LACTIC ACID 0.1 0.1 0.1 CationicBEHENTRIMONIUM CHLORIDE, 2.4 2.4 2.4 2.4 2.4 2.4 2.4 Surfactant(s)BEHENTRIMONIUM METHOSULFATE, CETRIMONIUM CHLORIDE AND/OR CETRIMONIUMMETHOSULFATE Fatty CETYL ESTERS, ISOPROPYL MYRISTATE, 7 7 4.7 4.7 7 3.73.7 Compound(s) AND/OR CETEARYL ALCOHOL Cationic PolymerPOLYQUATERNIUM-37 Water-Soluble GLYCERIN, PROPYLENE GLYCOL, AND/OR 0.50.5 2.5 2.5 0.5 2.5 2.5 Solvent ISOPROPYL ALCOHOL Silicone(s)AMODIMETHICONE AND/OR LAURYL 0.7 0.7 0.18 0.2 0.7 0.2 0.2 PEG/PPG-18/18METHICONE Thickener(s) OPTIONAL COMPONENT 0-2 0-2 0-2 0-2 0-2 0-2 0-2Salt(s) OPTIONAL COMPONENT 0-2 0-2 0-2 0-2 0-2 0-2 0-2 pH Modifier(s)OPTIONAL COMPONENT 0-2 0-2 0-2 0-2 0-2 0-2 0-2 Preservative(s) OPTIONALCOMPONENT 0-2 0-2 0-2 0-2 0-2 0-2 0-2 Fragrance(s) OPTIONAL COMPONENT0-2 0-2 0-2 0-2 0-2 0-2 0-2 Water WATER Q.S. Q.S. Q.S. Q.S. Q.S. Q.S.Q.S.

Example 4-1 Conditioners

INCI US A B Active TAURINE 3 3 Active CITRIC ACID 1.9 1.9 Active MALEICACID 1.9 1.9 Active ETHANOLAMINE 0.8 1.4 Cationic CETRIMONIUM CHLORIDE,1.9 1.9 Surfactant(s) CETRIMONIUM METHOSULFATE, BEHENTRIMONIUMMETHOSULFATE, QUATERNIUM-91, AND/OR STEARAMIDOPROPYL DIMETHYLAMINE FattyMINERAL OIL AND/OR 4.3 4.3 Compound(s) CETEARYL ALCOHOL Cationic PolymerPOLYQUATERNIUM-37 0.2 0.2 Water-Soluble GLYCERIN AND/OR PROPYLENE 3.53.5 Solvent(s) GLYCOL Thickeners ACRYLATES COPOLYMER 0.5 0.5 AND/ORHYDROXYETHYL CELLULOSE Preservative(s) OPTIONAL COMPONENT 0-2 0-2 waterWATER Q.S. Q.S.

Example 4-2 Rinse-Off Conditioners or All-In One Treatment

INCI US C D E Active TAURINE 3 3 3 Active CITRIC ACID 1.9 1 1 ActiveMALEIC ACID 1.9 1 1 Active ETHANOLAMINE 1.4 0.9 0.9 CationicBEHENTRIMONIUM — 1.3 1.3 Surfactant(s) CHLORIDE, Cationic CETRIMONIUM1.9 1.7 1.7 Surfactant(s) CHLORIDE, CETRIMONIUM METHOSULFATE,BEHENTRIMONIUM METHOSULFATE, QUATERNIUM-91, AND/OR STEARAMIDOPROPYLDIMETHYLAMINE Fatty MINERAL OIL AND/OR 4.3 6.2 6.2 Compound(s) CETEARYLALCOHOL Cationic Polymer POLYQUATERNIUM-37 0.2 — — Water-SolubleGLYCERIN AND/OR 3.5 — — Solvent(s) PROPYLENE GLYCOL Thickeners ACRYLATESCOPOLYMER 0.5 0.1 0.1 AND/OR HYDROXYETHYL CELLULOSE AND/OR HYDROXYPROPYLGUAR Silicone AMODIMETHICONE 1.7 1.7 Preservative(s), OPTIONAL COMPONENT0.342 1.2 1.2 Fragrance, nonionic surfactants, organic solvent (e.g.,alcohol) water WATER Q.S. Q.S. Q.S.

Example 4-3 Leave-In Conditioners or All-In One Treatment

INCI US F G H Active TAURINE 3 3 3 Active CITRIC ACID 1 1 1 ActiveMALEIC ACID 1.9 1.9 1.9 Active ETHANOLAMINE 1.4 1.4 1.4 CationicCETRIMONIUM 2 2.2 2.2 Surfactant(s) CHLORIDE, CETRIMONIUM METHOSULFATE,BEHENTRIMONIUM METHOSULFATE, QUATERNIUM-91, AND/OR STEARAMIDOPROPYLDIMETHYLAMINE Fatty MINERAL OIL AND/OR 4.4 4.5 4.5 Compound(s) CETEARYLALCOHOL Cationic Polymer POLYQUATERNIUM-37 0.2 0.2 0.2 Water-SolubleGLYCERIN AND/OR 0.5 0.5 0.5 Solvent(s) PROPYLENE GLYCOL ThickenersACRYLATES COPOLYMER 0.5 0.5 0.5 AND/OR HYDROXYETHYL CELLULOSE AND/ORHYDROXYPROPYL GUAR Preservative(s), OPTIONAL COMPONENT 0.7 1.5 0.7Fragrance, nonionic surfactants, organic solvent (e.g., alcohol) waterWATER Q.S. Q.S. Q.S.

Example 4-4 Fiber Durability Studies

Fiber durability testing (cycles to break (CTB)) was carried out using aDiaStron Cyclic Fatigue Tensile Tester (CFTT). Higher CTB indicates amore durable fiber. The following three groups of hair swatches weretested:

-   -   (1) Natural hair swatches;    -   (2) Hair shampooed 10 times with a standard sulfate-based        shampoo; and    -   (3) Hair swatches shampooed with a standard sulfate-based        shampoo, followed by a treatment with the conditioner        corresponding to Formulation A of Example 4-1. This was repeated        10 times.

The hair sample size for each swatch was about 50 fibers per sample. Thefibers were 28 mm long. The experiment was carried out at about 23° C.and 45% relative humidity and at constant stress over a specified areaat a pre-determined speed.

The CTB results showed that the hair swatches shampooed 10 times with astandard sulfate-based shampoo and treated with the conditionercorresponding to Formulation A of Example 4-1 required the most cyclesto break (was the strongest). The hair swatches shampooed 10 times withthe standard sulfate-based shampoo required more cycles to break thanthe natural hair swatches (control), which was likely due to theabsorption of water and possible plasticizing effects from one or moreingredients in the shampoo. The average CTB is reported in the tablebelow. The differences between the average CTB for each of the threedifferent groups of hair swatches was statistically significant.

Average Cycles Sample to Break Natural Hair Swatches 1107 Hair SwatchesShampooed 10 Times 2276 Hair Swatches Shampooed 10 Times and 4202Subsequently Treated with the Conditioner of Formulation A of Example4-1

Example 5 Rinse-Off Masques

INCI US #17 #18 Active TAURINE 3 3 Active CITRIC ACID 1.5 0.5 ActiveETHANOLAMINE 0.5 0.2 Cationic CETRIMONIUM CHLORIDE 2.2 Surfactant(s) ANDDIPALMITOYLETHYL HYDROXYETHYLMONIUM METHOSULFATE Fatty CETYL ESTERS,16.2 3.2 Compound(s) ORBIGNYA OLEIFERA SEED OIL, PROPYLENE GLYCOLDICAPRYLATE/DICAPRATE, MINERAL OIL, AND/OR CETEARYL ALCOHOL CationicPolymer POLYQUATERNIUM-37 1.5 Silicone(s) PHENYL TRIMETHICONE, 5.6DIMETHICONE, AMODIMETHICONE, AND DIMETHICONOL Water-Soluble CAPRYLYLGLYCOL AND/OR 0.6 1.7 Solvent(s) GLYCERIN Thickener(s) OPTIONALCOMPONENT 0-2 0-2 Fragrance(s) OPTIONAL COMPONENT 0-2 0-2Preservative(s) OPTIONAL COMPONENT 0-2 0-2 Water WATER Q.S Q.S.

Example 6 Leave-In Composition

INCI US #19 Active TAURINE 3 Active TRIETHANOLAMINE 0.6 Silicone(s)PEG/PPG-17/18 6.6 DIMETHICONE, DIMETHICONOL, AMODIMETHICONE, AND/ORCYCLOPENTASILOXANE Cationic BEHENTRIMONIUM 0.3 Surfactant CHLORIDE,BEHENTRIMONIUM METHOSULFATE, AND/OR CETRIMONIUM CHLORIDE Fatty CompoundCETYL ALCOHOL 0.1 Water-Soluble PROPYLENE GLYCOL 2.5 Solvent CationicPolymer POLYQUATERNIUM-4 0.3 Thickener(s) OPTIONAL COMPONENT 0-2Preservative(s) OPTIONAL COMPONENT 0-2 Fragrance(s) OPTIONAL COMPONENT0-2 Water WATER Q.S

Example 7 Conditioning Rinse

INCI US #20 Active TAURINE 3 Active CITRIC ACID 1.9 Active ETHANOLAMINE0.8 Cationic QUATERNIUM-91, 1.9 Surfactant(s) CETRIMONIUM CHLORIDE,STEARAMIDOPROPYL DIMETHYLAMINE, BEHENTRIMONIUM METHOSULFATE, AND/ORCETRIMONIUM METHOSULFATE Fatty Compound(s) CETEARYL ALCOHOL 4.3 AND/ORMINERAL OIL Cationic Polymer POLYQUATERNIUM-37 0.2 Water-SolubleGLYCERIN AND/OR 3.5 Solvent(s) PROPYLENE GLYCOL Thickener(s) OPTIONALCOMPONENT 0-2 Preservative(s) OPTIONAL COMPONENT 0-2 Fragrance(s)OPTIONAL COMPONENT 0-2 Water WATER Q.S

Example 8 Conditioning Rinse Compositions

INCI US #21 #22 #23 #24 Active TAURINE 3 3 3 3 Active CITRIC ACID 3 1.9Active MALEIC ACID 1.9 1.9 Active ETHANOLAMINE 0.8 0.8 Water-SolubleGLYCERIN 0.5 0.5 0.5 Solvent(s) AND/OR PROPYLENE GLYCOL AmphotericCOCAMIDOPROPYL 0.3 Surfactant BETAINE Cationic CETRIMONIUM 1.9 1.9 1.9Surfactant(s) METHOSULFATE, BEHENTRIMONIUM METHOSULFATE, QUATERNIUM-91,AND/OR CETRIMONIUM CHLORIDE, AND/OR STEARAMIDOPROPYL DIMETHYLAMINE FattyCETEARYL ALCOHOL 4.3 4.3 4.3 Compound(s) AND/OR MINERAL OIL CationicPOLYQUATERNIUM-10 0.2 0.2 0.1 0.2 Polymer(s) AND/OR POLQUATERNIUM-37Nonionic LAURETH-23 1 Surfactant Thickener(s) OPTIONAL 0-2 0-2 0-2 0-2COMPONENT Preservative(s) OPTIONAL 0-2 0-2 0-2 0-2 COMPONENTFragrance(s) OPTIONAL 0-2 0-2 0-2 0-2 COMPONENT Water WATER Q.S. Q.S.Q.S. Q.S.

Example 9 Gel Lotion

INCI US #25 CITRIC ACID 10 ETHANOLAMINE 4 HYDROXYETHYLCELLULOSE 1.5PRESERVATIVES 0.7 PEG-60 HYDROGENATED 1.5 CASTOR OIL FRAGRANCE 0-2 WATERQ.S.

Example 10 Shampooing and Conditioning Properties

The shampoo of Formulation #1 in Example 1 was compared with a placeboshampoo. The placebo shampoo was identical to the shampoo of Formulation#1 in Example 1 except that it did not contain taurine and it did notcontain citric acid. 1 gram bleached hair swatches were wet with waterfor 10 seconds and 0.3 grams of shampoo (either the shampoo ofFormulation #1 of the placebo shampoo) was lathered throughout the hairfor 30 seconds. The hair swatches were then rinsed with water for 30seconds and air dried. Once dry, the swatches were evaluated by a panelof experts.

The hair swatches treated with Formulations #1 were more coated, had astronger fiber feel, were more disciplined, and more supple than thehair swatches treated with the placebo shampoo. The hair swatchestreated with the placebo shampoo were softer, more limp, and smootherthan the hair swatches treated with Formulation #1.

The conditioner of Formulation #10 in Example 4 was compared with aplacebo conditioner. The placebo conditioner was identical to theconditioner of Formulation #10 in Example 4 except that it did notcontain taurine and it did not contain citric acid. 1 g bleached hairswatches were wet with water for 10 seconds. Then 0.3 grams ofconditioner (either the conditioner of Formulation #11 of the placeboconditioner) was applied to the hair swatches and allowed to remain onthe hair swatches for 5 minutes. The hair swatches were then rinsed withwater for 10 seconds and allowed to air dry.

The hair swatches treated with Formulation #10 were more coated, hadstronger fiber feel, were more disciplined, were more supple, had moreclosed ends, were more compact, and exhibited more curl definition thanthe hair swatches treated with the placebo conditioner. The hairswatches treated with the placebo conditioner had a rougher feel andexhibited more frizz than the hair swatches treated with Formulation#10.

Example 11 Consumer Testing

Caucasian and Hispanic/Latino consumers, ages 18-50, participated in ablinded monadic qualitative 2-week home study. The consumers describedtheir hair as having at least three of following seven attributes:course/rough, frizzy, dry, discoloration due to dryness, brittle, dulland or lifeless/limp. All consumers carried out a shampoo andconditioning regiment at least 3 times per week.

For two weeks, the consumers were to cease using their current shampooand conditioning regiment and instead use the shampoo of Formulation #4in Example 1 and the conditioner of Formulation 13 of Example 4. Theconsumers were instructed to continue to shampoo and conditioner theirhair with these formulations at least 3 times per week.

Some consumer complained of initial dryness of hair upon starting theregiment. However, after 1 week of continued use, the consumers reportedthat their hair had been strengthened and was healthier than beforestarting the regiment. After 2 weeks of use, the consumers reportedincreased protection against breakage.

Example 12 3-Part Bundle Treatment

A 3-part bundle treatment that included both taurine and citric acid wascompared to a 3-part bundle treatment that included only taurine and toa placebo treatment. Hair swatches (1 gram swatches, bleached) were wetwith water for ten second. About 0.3 grams of shampoo was then appliedto the wet hair swatches and worked into the hair for 30 seconds. Theswatches were then rinsed with water for 30 seconds before 0.3 of theacid gel lotion (or placebo or water) was applied to the hair. The acidgel lotion (and placebo and water) were allowed to remain on the hairswatches for 10 minutes. After 10 minutes, without rinsing the acid gelcomposition (or the placebo or water) form the hair swatches, about 0.3grams of conditioner were applied to the hair swatches. The conditionerwas worked into the hair and allowed to remain on the hair for 5 minutesbefore being rinsed from the hair. The conditioner was rinsed from thehair for 5 minutes. The hair was then allowed to air dry. The variouscompositions used are outlined in the table below, which also reportsthe results of the different treatments.

3-Part Bundle Treatment (Taurine & Citric Acid) Taurine Alone PlaceboShampoo Formulation #3 of Formulation #3 of Placebo Example 1 Example 1Shampoo² (Taurine, no Citric Acid) (Taurine, no Citric Acid) Gel LotionFormulation #25 of Placebo Treatment¹ Water Example 9 (10% Citric Acid)Conditioner Formulation #12 of Formulation #12 of Placebo Example 4Example 4 Conditioner³ (3% Taurine but no Citric (3% Taurine but noCitric Acid) Acid) Results Most coated, stronger Most curl definition,Frizzy, rough, fiber feel, most disciplined, softest, and smoothest andnot most supple, more closed smooth ends, and most compact ¹The PlaceboTreatment was identical to Formulation #25, except no citric acid wasincluded. ²The Placebo Shampoo was identical to Formulation #3, exceptno taurine was included. 3The Placebo Conditioner was identical toFormulation #12, except no taurine was included.

Hair swatches subjected to the 3-part bundle treatment with both taurineand citric acid exhibited excellent properties and showed the strongeststrengthening and repair. The hair was the most “coated,” had strongerfiber feel, were the most disciplined, the most supple, had more closedends, and was the most compact compared to the treatments with taurinealone or placebo. Treatment with taurine alone also provided excellentproperties. These hair swatches showed the most curl definition, weresoftest, and the smoothest. Hair treated with the placebo shampoo andplacebo conditioner (without any taurine or citric acid), was frizzy,rough, and not smooth.

Example 13 Fiber Durability Studies

The fiber durability (cycles to break (CTB)) of natural hair, bleachedhair, and bleached hair treated with 10 application of the conditionercorresponding to Formulation #12 of Example 4 was evaluated using theCyclic Fatigue Tester (CFTT). Higher CTB indicates a more durable fiber.The number of cycles to break according to the Weibull Analysis showedthat the natural hair required the most cycles to break (natural hairwas the strongest) followed by the bleached hair treated with theconditioner corresponding to Formulation #12 of Example 4. Untreatedbleached hair was the weakest. The Weibull analysis did not includefibers that broke upon the first pull and did not include fibers thatbroke at the set maximum of 25,000 cycles. The hair sample size was 50fibers per sample. The fibers were 28 mm long. The experiment wascarried out at about 22° C. and 45% relative humidity. A constant stressof 0.0134 gmf/sq micron was used with a speed of 40 mm/second.

Natural untreated hair had CTB of 7496.6. Untreated bleached hair had aCTB of 2333.9. Bleached hair treated with the conditioner correspondingto Formulation #12 of Example 4 had a CTB of 5775.71. The results aregraphically presented in FIG. 1 . FIG. 2 plots the Survival Probabilityagainst the cycles. The results show a significant improvement whenbleached hair is treated according to the instant disclosure.

Similar testing was carried out to determine the influence of citricacid when combined with taurine. Bundles, as shown in the table below,were compared. The hair was treated with 10 cycles of each bundle.

Bundle 1 3-Part Bundle Treatment Bundle 2 (Taurine & Citric Acid)Placebo Shampoo Formulation #3 of Placebo Example 1 Shampoo¹ (Taurine,no Citric Acid) Gel Lotion Formulation #31 of Water Example 9 (10%Citric Acid) Conditioner Formulation #13 of Placebo Example 4Conditioner² (3% Taurine but no Citric Acid) ¹The Placebo Shampoo wasidentical to Formulation #3, except no taurine was included. ²ThePlacebo Conditioner was identical to Formulation #11, except no taurinewas included.

Hair treated with Bundle 1 was the strongest and had a CBT of 3478.6.The hair treated with Bundle 2 had a CBT of 1622.9. These resultsdemonstrate a significant improvement when hair is treated with Bundle1.

The foregoing description illustrates and describes the disclosure.Additionally, the disclosure shows and describes only the preferredembodiments but, as mentioned above, it is to be understood that it iscapable to use in various other combinations, modifications, andenvironments and is capable of changes or modifications within the scopeof the invention concepts as expressed herein, commensurate with theabove teachings and/or the skill or knowledge of the relevant art. Theembodiments described herein above are further intended to explain bestmodes known by applicant and to enable others skilled in the art toutilize the disclosure in such, or other, embodiments and with thevarious modifications required by the particular applications or usesthereof. Accordingly, the description is not intended to limit theinvention to the form disclosed herein. Also, it is intended to theappended claims be construed to include alternative embodiments.

As used herein, the terms “comprising,” “having,” and “including” (or“comprise,” “have,” and “include”) are used in their open, non-limitingsense.

The terms “a,” “an,” and “the” are understood to encompass the plural aswell as the singular.

Thus, the term “a mixture thereof” is interchangeable with the term“mixtures thereof.” Throughout the disclosure, the term “a mixturethereof” is used, following a list of elements as shown in the followingexample where letters A-F represent the elements: “one or more elementsselected from the group consisting of A, B, C, D, E, F, and a mixturethereof.” The term, “a mixture thereof” does not require that themixture include all of A, B, C, D, E, and F (although all of A, B, C, D,E, and F may be included). Rather, it indicates that a mixture of anytwo or more of A, B, C, D, E, and F can be included. In other words, itis equivalent to the phrase “one or more elements selected from thegroup consisting of A, B, C, D, E, F, and a mixture of any two or moreof A, B, C, D, E, and F.”

Likewise, the term “a salt thereof” also relates to “salts thereof.”Thus, where the disclosure refers to “an element selected from the groupconsisting of A, B, C, D, E, F, a salt thereof, and a mixture thereof,”it indicates that that one or more of A, B, C, D, and F may be included,one or more of a salt of A, a salt of B, a salt of C, a salt of D, asalt of E, and a salt of F may be include, or a mixture of any two of A,B, C, D, E, F, a salt of A, a salt of B, a salt of C, a salt of D, asalt of E, and a salt of F may be included.

The salts, for example, the salts of the amino acids, the amino sulfonicacids, and the non-polymeric mono, di, and/or tricarboxylic acids, whichare referred to throughout the disclosure may include salts having acounter-ion such as an alkali metal, alkaline earth metal, or ammoniumcounterion. This list of counterions, however, is non-limiting.

The expression “one or more” means “at least one” and thus includesindividual components as well as mixtures/combinations.

Other than in the operating examples, or where otherwise indicated, allnumbers expressing quantities of ingredients and/or reaction conditionsare to be understood as being modified in all instances by the term“about,” meaning within +/−5% of the indicated number.

All percentages, parts and ratios herein are based upon the total weightof the compositions of the present invention, unless otherwiseindicated.

“Keratinous substrates” as used herein, includes, but is not limited tokeratin fibers such as hair and/or scalp on the human head.

“Conditioning” as used herein means imparting to one or more hair fibersat least one property chosen from combability, moisture-retentivity,luster, shine, and softness. The state of conditioning can be evaluatedby any means known in the art, such as, for example, measuring, andcomparing, the ease of combability of the treated hair and of theuntreated hair in terms of combing work (gm-in), and consumerperception.

The term “treat” (and its grammatical variations) as used herein refersto the application of the compositions of the present disclosure ontothe surface of keratinous substrates such as hair. The term “treat” (andits grammatical variations) as used herein also refers to contactingkeratinous substrates such as hair with the compositions of the presentdisclosure.

A “rinse-off” product refers to a composition such as a hair-treatmentcomposition that is rinsed and/or washed with water either after orduring the application of the composition onto the keratinous substrate,and before drying and/or styling said keratinous substrate. At least aportion, and typically most, of the composition is removed from thekeratinous substrate during the rinsing and/or washing.

The term “stable” as used herein means that the composition does notexhibit phase separation and/or crystallization for a period of time,for example, for at least 1 day (24 hours), one week, one month, or oneyear.

“Volatile”, as used herein, means having a flash point of less thanabout 100° C.

“Non-volatile”, as used herein, means having a flash point of greaterthan about 100° C.

As used herein, all ranges provided are meant to include every specificrange within, and combination of sub ranges between, the given ranges.Thus, a range from 1-5, includes specifically 1, 2, 3, 4 and 5, as wellas sub ranges such as 2-5, 3-5, 2-3, 2-4, 1-4, etc.

The term “substantially free” or “essentially free” as used herein meansthat there is less than about 5% by weight of a specific material addedto a composition, based on the total weight of the compositions.Nonetheless, the compositions may include less than about 3 wt. %, lessthan about 2 wt. %, less than about 1 wt. %, less than about 0.5 wt. %,less than about 0.1 wt. %, or none of the specified material.

All ranges and values disclosed herein are inclusive and combinable. Forexamples, any value or point described herein that falls within a rangedescribed herein can serve as a minimum or maximum value to derive asub-range, etc.

All publications and patent applications cited in this specification areherein incorporated by reference, and for any and all purposes, as ifeach individual publication or patent application were specifically andindividually indicated to be incorporated by reference. In the event ofan inconsistency between the present disclosure and any publications orpatent application incorporated herein by reference, the presentdisclosure controls.

1-20. (canceled)
 21. A method for treating hair comprising: (a) applyinga shampoo composition to the hair, the shampoo composition comprising:(i) at least one amino acid chosen from taurine, arginine, asparticacid, glycine, alanine, serine, valine, isoleucine, proline, threonine,histidine, phenylalanine, or a combination of two or more thereof; (ii)at least one compound chosen from carboxylic acids, salts thereof, orcombinations thereof; and (iii) water; (b) allowing the shampoocomposition to remain on the hair for a period of time of up to about 5minutes; (c) rinsing the hair; (d) applying a treatment composition tothe hair, the treatment composition comprising: (i) at least one aminoacid chosen from taurine, arginine, aspartic acid, glycine, alanine,serine, valine, isoleucine, proline, threonine, histidine,phenylalanine, or a combination of two or more thereof; (ii) at leastone compound chosen from carboxylic acids, salts thereof, orcombinations thereof; (iii) at least one cationic polymer; (iv) at leastone silicone; (v) at least one fatty compound chosen from ceramides,oils, fatty alcohols, or combinations of two or more thereof; and (vi)water; (e) allowing the treatment composition to remain on the hair fora period of time ranging from about 5 minutes to about 20 minutes; and(f) optionally, rinsing the hair.
 22. The method according to claim 21,wherein the shampoo composition comprises (a) at least two amino acidsselected from the group consisting of arginine, aspartic acid, glycine,alanine, serine, valine, isoleucine, proline, threonine, histidine, andphenylalanine.
 23. The method according to claim 21, wherein thetreatment composition comprises (a) at least two amino acids selectedfrom the group consisting of arginine, aspartic acid, glycine, alanine,serine, valine, isoleucine, proline, threonine, histidine, andphenylalanine.
 24. The method according to claim 21, wherein the shampoocomposition comprises (b) citric acid and/or a salt thereof.
 25. Themethod according to claim 21, wherein the treatment compositioncomprises (b) citric acid and/or a salt thereof.
 26. The methodaccording to claim 24, wherein the shampoo composition comprises (b) atleast one additional carboxylic acid and/or salt thereof.
 27. The methodaccording to claim 25, wherein the treatment composition comprises (b)at least one additional carboxylic acid and/or salt thereof.
 28. Themethod according to claim 26, wherein the shampoo composition comprises(b) lactic acid and/or salt thereof.
 29. The method according to claim27, wherein the treatment composition comprises (b) lactic acid and/orsalt thereof.
 30. The method according to claim 21, wherein thetreatment composition comprises (iii) guar hydroxypropyltrimoniumchloride.
 31. The method according to claim 21, wherein the treatmentcomposition comprises (iv) dimethicone.
 32. The method according toclaim 21, wherein the treatment composition comprises (v) at least oneceramide, at least one oil, and at least one fatty alcohol.
 33. Themethod according to claim 21, wherein the treatment compositioncomprises: (i) at least two amino acids chosen from the group consistingof arginine, aspartic acid, glycine, alanine, serine, valine,isoleucine, proline, threonine, histidine, and phenylalanine; (ii)citric acid and/or a salt thereof; (iii) guar hydroxypropyltrimoniumchloride; (iv) dimethicone; (v) at least one ceramide, at least one oil,and at least one fatty alcohol; and (vi) water.
 34. The method accordingto claim 33, wherein the treatment composition comprises (ii) at leastone additional compound chosen from carboxylic acids and/or saltsthereof.
 35. The method according to claim 33, wherein the treatmentcomposition comprises (ii) at least two additional compounds chosen fromcarboxylic acids and/or salts thereof, wherein at least one of theadditional compounds is chosen from lactic acid and/or a salt thereof.36. The method according to claim 33, wherein the treatment compositioncomprises (iv) at least one additional silicone and/or (v) at least oneadditional fatty compound.
 37. The method according to claim 33, whereinthe treatment composition is left on the hair for about 10 minutes. 38.The method according to claim 33, wherein the hair is rinsed after about10 minutes.
 39. A method comprising: (a) applying a shampoo compositionto the hair, the shampoo composition comprising: (i) arginine, asparticacid, glycine, alanine, serine, valine, isoleucine, proline, threonine,histidine, and phenylalanine; (ii) citric acid and/or a salt thereof;and (iii) water; (b) allowing the shampoo composition to remain on thehair for a period of time of up to about 5 minutes; (c) rinsing thehair; (d) applying a treatment composition to the hair, the treatmentcomposition comprising: (i) arginine, aspartic acid, glycine, alanine,serine, valine, isoleucine, proline, threonine, histidine, andphenylalanine; (ii) citric acid and/or a salt thereof; (iii) guarhydroxypropyltrimonium chloride; (iv) dimethicone; (v) at least oneceramide, at least one oil, and at least one fatty alcohol; and (vi)water; (e) allowing the treatment composition to remain on the hair fora period of time ranging from about 5 minutes to about 20 minutes; and(f) rinsing the hair.
 40. The method according to claim 39, wherein theshampoo composition, the treatment composition, or both further compriseat least two additional compounds chosen from carboxylic acids and/orsalts thereof, wherein at least one of the additional compounds ischosen from lactic acid and/or a salt thereof.
 41. The method accordingto claim 40, wherein the treatment composition comprises (iii) at leastone additional cationic polymer, (iv) at least one additional silicone,and/or (v) at least one additional fatty compound.
 42. The methodaccording to claim 41, wherein the treatment composition is left on thehair for about 10 minutes before the hair is rinsed.